Given a text T, and several options, according to the question posed in the text T to choose the most appropriate option from the options as the answer, please directly output the most appropriate option, do not need to output the explanation.

Central banks would typically be most concerned with costs of:
Option A:low levels of inflation that are anticipated.
Option B:moderate levels of inflation that are anticipated.
Option C:moderate levels of inflation that are not anticipated.

Answer: C