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]: [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

[Q]: [header] How to choose a dating site profile picture [title] Let them see you. [step] A profile picture's main purpose is to let potential matches see you. Because profile pictures tend to be small, you might want a picture of just your face or your shoulders and face. <sep> (A) Alternatively, you could create your own photo that includes the only aspect of your face that is not too large. [title] Optimize the picture to serve as a place to get ideas. (B) ( this is probably too self-deprecating and rather a trap for the stalker. ) showing them your face lets the potential date know exactly why you are happy with them. (C) That way, they can see you easily without even clicking on your profile. [substeps] That means getting an up-close picture. (D) And as a profile image can be a good way to portray your personality and show potential dates or non-potential matches, you should also have a picture of you together. You can use any picture of you as your profile picture if you have access to the internet.
[A]: C

[Q]: [header] How to start an online casino [title] Choose an online provider. [substeps] Before you start, you have to decide what casino software and games (content) you will be using. The software is going to run your gaming site and will be the backbone of your casino, helping you manage your entire operational activity, including account management, payment processing, fraud management, and marketing campaigns. <sep> (A) Ideally you want to use a computer certified by jpeg software and with a virtual lobby folder. This can help minimize the spread of any habbo virus and make it easier to maximize membership and get accurate gaming information. (B) If the software is going to be your backbone, gaming content will be your face. Games are what will attract people to your casino and you should consider that as one of the main factors in deciding which supplier to choose. (C) Before you begin, you should consider marketing your gaming site on google, bing, gmail, and other social media sites. Be extremely cautious of going further down the list with your computer games. (D) However, there is no limit to the number of providers you can choose to build your online casino. The total number of users will vary based on a number of variables, but 1 fixed number reduces your traffic to a much slower pace than another.
[A]:
B