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.
Q: Prompt: A plane is flying level and seemed about to turn. Its 
Completion A: head was bobbing up and down. 
Completion B: nose went up. 
Completion C: left indicator was switched on. 
Completion D: stomach didn't sit well with the turn.
A:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Completion B