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". 

Input: Consider Input: [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.

Output: C


Input: Consider Input: The juvenile gives to the young man a shoe, then he sprays polish on the shoe and shows a toothbrush while talking. Then, the juvenile puts foam on the shoe and brush with the toothbrush. the young man <sep> (A) puts on white socks and fits on the shoe. (B) throws the shoe onto the table and rubs the shoe with white soap. (C) gives back the mirror to the juvenile and the juvenile waste the foam on his shoe, then he continues talking. (D) brushes the shoe with foam while they talk.

Output: D


Input: Consider Input: [header] How to replace fluorescent lighting [title] Make sure that the power is switched off. [step] Before replacing a fluorescent light, you should make sure the fixture is not powered on. Do not simply use the wall switch to remove power to the fixture. <sep> (A) Check the appropriate circuit breaker on the back of the light fixture to see if this switch is working. [substeps] If the switch looks broken, or failing to turn off, then try turning off the power supply and replacing the fixture. (B) Removing power to a fluorescent lights fixture causes damage to your electrical system. To be sure that the fixture is dead, remove it from the outlet, turn off the power to the circuit, and assess whether you need to replace it. (C) You can use the fuse box to shut off power to the lamp's circuit. Use a voltage tester to verify that there is no power in the fixture. (D) Here are some signs that the power is on : [substeps] There are flickering lights around. These lights indicate that the current is too low and the light is not shining properly.


Output: C