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". 

A indoor course is panned with camera in a warehouse setting. an athlete <sep> (A) runs on the course with a javelin, catching it about six times in the air before returning to throw again. (B) runs down a track and pole vaults over a high bar and onto a cushioned landing pad. (C) runs through the course exhibits. (D) performs a routine on the course taking long spins around turns.
B

The doctor uses a brush to scrub nails and hands. A doctor washes their hands in a large stainless steel sink with hand soap multiple times. the doctor <sep> (A) uses the brush to rub a suture needle into his palms. (B) uses a towel to clean on the sink. (C) uses a small brush to wipe several areas on the body of the sink and change water for the other areas. (D) completely rinses their hands then clasps together and walks out of the room without touching anything.
D

[header] How to use your samsung galaxy as a baby monitor [title] Open the google play store. [step] Tap the application icon from your phone's home screen to launch the program. [title] Find a baby monitor application. <sep> (A) [step] Tap the app's icon from the home screen. [substeps] On android phones, the app icon is rainbow. (B) [step] Tap the magnifying glass icon on the upper right-hand corner of the screen and type " baby monitor " in the text field. Tap the " enter " key on your galaxy's keyboard to begin searching. (C) [step] Tap the icon in the app drawer to look for the app. When you are in the app app, tap on the baby monitor icon to open the app. (D) [step] Search for the app using a keyword keyword as the sound of its name. [title] Tap the " get a baby monitor " button.

B