Given the task definition and input, reply with output. 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". 

[header] How to get weather channel push notifications in the wunderground app on iphone or ipad [title] Open up the wunderground app on your phone. [step] The app's icon has the letters wu on a black backdrop with a rainbow-bordered text of blue, orange and white. [title] Enable location services when asked. <sep> (A) [step] This is optional, but it removes undesirable features from your wunderground mobile app. When calling a friend or family member to watch your wunderground videos, simply toggle the switch " location services " to the " off " position. (B) [step] This will take you directly to the location you want to go to on your iphone or ipad. [title] Select " location services " when prompted. (C) [step] You can get weather channel-directed updates from far-across-the-map websites. [substeps] Tap location services to set your location plans when prompted. (D) [step] Enabling this setting will allow you to get weather updates without searching for your current location or city (a nice feature of wunderground, over the weather channel). [title] Choose the settings gear from up near the top right of the screen.

D