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 stretch to improve your flexibility [title] Warm up your muscles. [step] Perform 40 jumping jacks , 25 squats, run on the spot for 5 minutes, and ten press-ups or ten girl press-ups if you are not strong enough. [title] Start with simple stretches to get used to the concept and feeling of stretching. <sep> (A) [step] You can stretch on a ball or in the sky. Avoid attempting to do anything difficult or hard and figure out what you're doing properly. (B) [step] Does it feel to stretch? That is great. Start slow and do thirty chest presses before you reach bench pressing. (C) [step] Stretching is the single best way to exercise comfortably and to elevate your blood circulation. [title] Work your muscles with the backbend workouts. (D) [step] Stand up and stretch your legs into a wide straddle. Reach down until your palms rest on the ground, keeping your legs straight.
[EX A]: D

[EX 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.
[EX A]: D

[EX Q]: [header] How to score a direct free kick [title] Watch the keeper. [step] The opposing keeper will give you a good idea about where to aim your kick. When a direct free kick is called, some of the opposing players will form a wall ten yards away from you in front of the keeper. <sep> (A) The other players on the other side of the wall will then turn and target you. [substeps] Standing feet are the standard practice for kick a direct free kick. (B) Watch their body language for possible opportunities of good kicking. [substeps] The opposing player could normally kick with his arm extended, as though the ball were coming toward him to swat at with a good kick to the leg. (C) While the purpose of the wall is to help the keeper defend against the kick, it can also obscure his view of the striker. Usually, the keeper will try to stay in the middle of the goal. (D) Once you have stepped, you'll tap the striker with your shin so he or she drops the ball behind you. [substeps] If you're a kicker, you need to make sure you have plenty of space between your target and the judge (s), so you can see where the ball lands.
[EX A]:
C