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.

Of the following statements regarding the Producer Price Index (PPI), which is the least likely? The PPI:
Option A:can influence the future CPI.
Option B:category weights can vary more widely than analogous CPI terms.
Option C:is used more frequently than CPI as a benchmark for adjusting labor contract payments.

Answer: C