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 elevate your hand while sleeping [title] Sleep on your back or side. [step] In order to elevate your hand while you're sleeping, you'll need to sleep on your back or on the side opposite of the arm that needs elevation. This is the easiest resting position for elevating your hand. <sep> (A) [substeps] Lying on your side not only has been shown to help alleviate hand inflation, but it also improves circulation in and around the hand and wrist joints. It's also more efficient than sleeping on your side. (B) [substeps] You can use a pillow to support your arm when you start to feel like your hand's elevating off the ground. Place a rolled up towel over your head to help prevent air from pooling near your arm. (C) [substeps] Sleeping on your stomach won't allow you to elevate your hand as easily. It's much harder to prop it up from behind if you're lying flat on your stomach. (D) [substeps] Lie on your back with the pillow propping your head up at a 45 degree angle. Your dominant hand should support the bottom of your pillow.
C

A man shows a video of himself training for the weightlifting events in the olympics. several times <sep> (A) he practices weightlifting while someone films him and clips him outside. (B) he is shown doing lift lifts and then off of the bar. (C) , times when they are in the olympics, coaches speak with them while the camera pans around the competition. (D) , he picks up weight and lifts it over his head.
D

They go outside and do several flips on the grass. The girls finish by walking on their hands. a credit for the music <sep> (A) is shown at the end. (B) is recorded at the end. (C) is recorded. (D) is played for the girls.

A