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 find half of any number [title] Multiply the number by 5 (five), then move it a decimal point to the left. [step] 6 (six) times 5 is 30, for instance, so put the decimal point in between the 3 and the 0. That would just be 3! [title] Divide each number by 2 if you have two even digits. <sep> (A) [step] This is the most common number you'll see. Most also start with 1, but you can add in a number to improve. (B) [step] In our example , 16 = 53. If you have two numbers, the 2 would be 7. (C) [step] Divide the digits individually, then put them together. That may make a complicated process much simpler. (D) [step] For example , 2 + 3 = 2, so don't add 2. [title] Multiply the number by 5 (6), to get 5.
[A]: C


[Q]: A person is seen riding around on roller blades and performing a grind on a bar. several more clips <sep> (A) are shown of the boy riding around on the equipment as well as sit on the floor and play pool. (B) are shown of people driving around on machines with one person riding in front. (C) are shown of the athletes performing tricks in various stretches as well as throwing a ball off into the distance. (D) are shown of the person performing grinds with roller blades as well as other flips and tricks.
[A]: D


[Q]: A man is kneeling down on an orange mat. he <sep> (A) is using a blue pump to pump blood into his feet. (B) pulls a rope on an exercise machine. (C) lifts his face up to the camera and holds up a black mat. (D) uses a metal brush to wipe green off of the mat.
[A]:
B