Definition: 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: [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