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 Q]: [header] How to do chest exercises in yoga [title] Do the mountain pose to warm up, plus a couple of humming bee breathing exercises. [step] These will get you ready to stretch out your body in the variety of poses you'll use to exercise your chest. Notice your breathing pattern as complete the mountain pose. <sep> (A) Inhale and keep your breathing slow and even throughout the whole warm up period. [substeps] Alternatively, do a crossfit pose to warm up. (B) [substeps] You might try taking an extended pause to " use " your rib cage, start to breath in, breathe out, and repeat. You can also try practicing your opening pose from a hovering yoga chair, at home, or in a pose at your workplace. (C) Settle on a consistent, slow pattern of breath as you start the workout. This breathing pattern will help calm yourself and prepare your heart rate for the more difficult exercises to come. (D) [substeps] After doing the mountain pose, you can do finger circles or kangaroo standing pose to warm up the muscles in your chest. [title] Do the rock dii to strengthen the core.
[EX A]: C

[EX Q]: A woman standing outside on the roof smoking a cigarette. she <sep> (A) blows the smoke in circles around it. (B) blows smoke and plays around with her hair. (C) rotates her hands back and forth, taking drags off her cigarette. (D) claps one hand while holding a laptop.
[EX A]: B

[EX Q]: A woman is sitting down at a table talking. she <sep> (A) lifts up a box and sets it on the table. (B) puts ice in an ice bucket. (C) picks up a bottle in her lap. (D) is sitting while a child pushes a ball out into the street.
[EX A]:
A