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". 

Example Input: A bunch of men are inside a green colored gym. They are lobbing a tennis ball back and forth. they <sep> (A) are engaged in a game of tennis. (B) bounce the ball up and down on the trampoline as they go. (C) hit the ball up high into the air. (D) knock balls off the hoops into the spectators.
Example Output: A

Example Input: [header] How to make a composite longbow [title] Select your wood. [step] Go to a hardware store or an archery store. Only cut live trees if you are sure it is a suitable wood, and are prepared to properly dry the wood. <sep> (A) [substeps] Non-live trees can be prepared for a shoot near a slope. However, live trees that have been broadcast on the news should be cut or damaged, to avoid soiling the tree. (B) Just-cut, wet wood won't work well. [substeps] Look for a board that's 6 feet (1.8 m) long , 1 " x2 ". (C) [title] Squeeze out the sap from each antler. [step] Squeeze each antler gently to release the excess sap in the old antler. (D) For smaller shoots, use white cedar or fir bark. If the shoot is large, use pine bark or maple bark.
Example Output: B

Example Input: [header] How to set up a workout plan [title] Make a workout schedule and stick to it. [step] Time management is key to accomplishing any goal, and your workout routine is no different. Pick a time of day that works best for you; do morning workouts if you enjoy waking up early, or schedule or gym visits on the way home from work if that better fits your schedule. <sep> (A) [title] Set significant goals that impact your workout. [step] Measure your progress at each workout and put them on a physical calendar to stick to. (B) Whatever schedule you decide on, it is important that you stick to it. [title] Write down your short-and long-term goals. (C) [title] Select a time to stretch out your muscles. [step] You can't start your workout until you are properly hydrated. (D) [substeps] Avoid work outs where you'll be at your computer or texting station. If you walk or, other physical conditions could interrupt your exercise, your workout plan or schedule could change.
Example Output:
B