In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D". 

Ex Input:
[header] How to treat cold sores in your nose [title] Figure out if you have cold sores in your nose. [step] Because it is difficult to see inside of your nose, you may need to figure out if you have cold sore instead of another condition such as an ingrown hair or pimple. Checking the areas in and around your nose can help you figure out if you have cold sores in your nose. <sep> (A) [substeps] Check your nose from the bottom of your nose, just in front of your cheekbone, towards your chin. If it feels numb, there is probably something there. (B) [title] Determine if you have a stuffy nose. [step] In your nose, you may need to take some pressure off of the bridge of your nose and see if that pressure is gone or causes the discomfort. (C) [substeps] Use a mirror to check the visible surfaces of your nasal cavity. You may not be able to see much, but even detecting a cold sore can help. (D) [substeps] To figure out if you have cold sores, you may be looking in your nose. Either look back at the corner of your nose, or look to the floor.

Ex Output:
C


Ex Input:
[header] How to encourage an autistic person's special interests [title] Check out library books relating to their interest. [step] They can read about their favorite things at their own leisure, without the expense of constantly buying new books. [title] Buy gifts related to the latest interest. <sep> (A) [step] This can be something as simple as fancy designs, or will also be something that you know they'll like. Could be a cool summer smell, a killer crocheted sweater, a great cake recipe, for instance. (B) [step] One good thing you can buy is a stuffed animal. They can attach a cute sign on the front, telling the person where to place the gift. (C) [step] This can be anything from toy birthday items to brochures, catalogs, trophies, and similar. [substeps] Smile at each child when asking them for their gift. (D) [step] This will ensure that they like whatever you give them, and they will feel understood and appreciated. Here are some examples of good gifts : [substeps] Arts and craft kits (e.g.

Ex Output:
D


Ex Input:
[header] How to become an internet provider [title] Find a suitable building to house the isp's data center. [step] Ideally, the building should have raised floors to route cables. [title] Purchase and install ups units, a diesel power generator and hvac units. <sep> (A) [title] Verify you have the right number of php sources to support php emission filter operations. [title] Buy amplitude poles and plant data for php filters. (B) [step] These units are inexpensive and are able to help block you open the doors of the home and prevent your personal urination from happening. [title] Make sure all models fit your needs. (C) [step] The ups and diesel power generators are needed when city power is interrupted by a power outage. The hvac units are needed to keep the data center cool, because the equipment running the isps generates heat which can damage equipment. (D) [step] Alternatively, purchase hvac units and install them in the same second building with mounting and mounting as manufacturers. [title] Install the md 3 or newer in their original apartment.

Ex Output:

C


