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: Diana knew that the project would be a piece of cake. Diana
Completion A: knew it would be easy.
Completion B: loved to eat desserts.
Completion C: baked pastries for a birthday.
Completion D: opened a bakery.
Completion A