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".
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Question: A man wearing grey shorts kneels down on a carpeted floor and begins stretching. The man moves his right leg under his hip and in front of his left knee. the man <sep> (A) continues exercising his left leg. (B) is then sitting while he's exercising and putting a harness. (C) then begins looking comfortable about doing this and stretches. (D) begins to rock back and forth in a slow movement as he stretches.

Answer: D

Question: [header] How to make green beans [title] Bring a pot of water to a boil in a saucepan over medium-high heat. [title] Add salt to the water once it begins to boil. [title] Trim the stems of the green beans and place them into the pot of gently boiling water. <sep> (A) [title] Once the water boils, drop 1-inch (2.5 centimeter) stems of 1 1/2 pounds (2.35 grams) of green beans into the boiling water. [title] Wait until the green beans are ready to be processed. (B) [step] You will need one green bean per cup (260 ml) of boiling water. [title] Add the green beans to the pot. (C) [title] Add ground bell pepper, thyme, and basil to the water for the next step. [step] Stir the green beans in with the salt until everything is evenly combined and the bean pieces are tender to the touch. (D) [title] Leave the green beans in the pot for 4 or 5 minutes, until they are cooked but still crisp. [title] Drain the green beans and cover them in ice water to stop the cooking process.

Answer: D

Question: [header] How to sail an optimist [title] Obtain all of the equipment needed (a rudder, dagger board, sail, mast, boom, and spirit pole etc). [step] These should all come with the boat. If you are buying the boat new, a decent seller will always include rigging equipment such as lines (ropes) and blocks (pulleys). <sep> (A) You will also need a hardy berth to ensure that no one gets hurt while on the boat. This includes outboards, rudder boards, boat trailers, ropes, etc. (B) Secure anything else that your boat will need and this is a great time to get things started. Be sure that you want to plan what you are going to do before starting. (C) Make sure these are the same material or specifications all of the boats on that particular ship will use. If in doubt about purchasing both ropes and anchors, only purchase the two. (D) These are extremely expensive for what they are and also difficult to assemble if you buy them separately. It is also recommended to buy a dolly with the boat as well.

Answer:
D