Given the task definition and input, reply with output. Given a prompt and four completions, select the completion that is the most plausible in continuing or answering the prompt. This task is designed to test common sense and has various categories ranging between idioms, negated statements, polysemy, subject referencing, and quantitative reasoning. Generate either Completion A, Completion B, Completion C, or Completion D.

Prompt: Paul cuts a piece of cake in half. He
Completion A: is happy that he destroyed the piece of cake.
Completion B: gives a piece to each of his two kids.
Completion C: realizes the piece of cake is now useless.
Completion D: then merges the two halves into a whole piece indistinguishable from the one he started with.
Completion B