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 treat your customer while serving them [title] When the customer approaches your till point, greet them nicely. [step] This means you should acknowledge the customer with eye contact. Say " hello " and smile. <sep> (A) [title] Apologise for any wait, no matter how short. [step] The customer might not understand why they have had to wait. (B) [substeps] Also greet them in a professional manner. Always state your name, address, and similar things. (C) Offer him or her a fresh drink once in awhile. [substeps] Remember to shake each customer's hand. (D) If you don't meet their smile they'll get bored and start saying no. To greet the customer again, do a brief " hi " and introduce them to your horde.

Output: A

Input: Consider Input: A group of people are seen walking around when two men grabs hands. the men <sep> (A) then begin playing tug of war and throwing one another's hands up in the air. (B) then begin arm wrestling one another while other watch. (C) then begin playing darts while others watch them on the sides. (D) then reach into a bag that is sitting in the sand.

Output: B

Input: Consider Input: [header] How to make a clay whistle [title] Start with approximately 455 grams (1 lb) of clay. [substeps] Purchase clay at arts and crafts retail chains, like michaels, or retailers such as target/walmart. [title] Make two balls of clay, and make two small pots. <sep> (A) [step] These will be the ears of the whistle. Choose one for the head and one for the mouth, for addition. (B) [substeps] You want your clay pots in a shape similar to a duck. They should be a little smaller and slightly closer to one another. (C) [step] Take the ball of clay and press your thumb into the middle of it. Keep your thumb inserted into bowl and pinch clay to form the pinch pots. (D) [step] Move the small balls around in the clay until you get the right sound. Drop the clay balls on a work surface, smooth out any rough edges, and freeze.
Output: C