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 research the market before launching a product or service [title] Start by doing some qualitative market research. [step] You can do it with an agency or on your own. You only need few people (between 5 and 10) from your target market (potential customers) so it is possible to diy. <sep> (A) [title] Don't expect to work in a large company. [step] Meet people for a coffee, greeting and perhaps the business plan or abstract of a product you just started. (B) It can be very helpful to have people assisting in the research so you don't become too particular. [title] Conduct an analysis of the food, drug or cheese market. (C) The only important thing is not to choose some people that you know. This qualitative research has to be done in an objective and neutral way. (D) [title] Gather information in an essay, packet, card, book or letter. [step] This will help keep the reader engaged.

Ex Output:
C


Ex Input:
[header] How to have healthy kidneys [title] Stay hydrated. [step] Staying properly hydrated is one of the best ways to keep your kidneys healthy. Without adequate water, your kidneys can lose some of their ability to filter your blood, and may even become damaged over the course of your lifetime. <sep> (A) [substeps] Drinking water helps your kidneys flush sodium, urea, toxins, and waste out of your body. By staying properly hydrated, you can significantly reduce your risk of developing chronic kidney disease. (B) Aim to drink at least 8 fluid ounces of water every day. This will help reduce any additional fluid or waste in your system and will also allow you to more easily relieve the symptoms of kidney problems. (C) Insufficient water will contribute to poor kidney function, such as kidney failure and rheumatoid arthritis. Trying to drink water with no filter might cause further kidney damage. (D) [substeps] The best amount of water recommended by experts is 1 gallon a day (2.5 liters) each. Drink bottled water, but you don't need soda, fruit juices, or other non-carbonated beverages; opt for bottled water.

Ex Output:
A


Ex Input:
[header] How to be a productivity consultant [title] Earn your bachelor's degree in business, marketing, finance or a similar degree. [step] This is the lowest amount of education needed to become a productivity consultant. Choosing a business-related degree will allow you to launch yourself into the business world after graduation. <sep> (A) [title] Apply for an entry-level job at a company or corporation. [step] If possible, join a management track where you will learn how managers trained. (B) [title] Get a bachelor's degree in business administration or better yet, a master's degree in accounting. [step] That way, you can succeed as a consultant even with minimal experience in the industry. (C) The more work or coursework you require after graduation, the higher your startup budget will be. [title] Reach out to employers to gain access to a job. (D) [substeps] Earning your bachelor's degree will give you an edge over other college educated peers as well as financial professionals. Gaining an unrelated business degree will help you compete with other clients.

Ex Output:

A


