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". 

[Q]: An introduction comes onto the screen for a video about rock climbing and a man introduces what will happen in the video. a men in a blue shirt <sep> (A) is doing a jump and falling off, then he begins to climb along the rock face with another by him. (B) stands behind a rock wall talking. (C) is shown climbing all the way to the top of a rock. (D) and the interviewer is inside of a gate in a park and he begins by jumping up to the top of a roofed wooden fence to do various things.
[A]: C


[Q]: [header] How to find an email address for free [title] Start with a google search. [step] If you haven't already done it type the individuals name into google in quotations. If you know the town or city that they reside in you can type that in after a plus sign like so. <sep> (A) [substeps] Learn what their email address is before you send your email; if you can't find it on the address list, ask your secretary for recommendations. [title] Click the green " search for [your email name] " button at the bottom of the part titled " contact us. (B) [title] Add the zip code to the search. [step] For example, if you're searching for mr. (C) If you know where the person lives, type their telephone number into the first field, then search in the name field as well. If they don't have a home address, type their city and zip code into the fields provided, checking that you know your state's code. (D) Furthermore if you know their profession you could type something like [title] Search the social networks. [step] The popularity in social networking sites like myspace and facebook have escalated in modern times.
[A]: D


[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.
[A]:
C