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.

The spread component of a specific bond’s yield-to-maturity is least likely impacted by changes in:
Option A:its tax status.
Option B:its quality rating.
Option C:inflation in its currency of denomination.

Answer: C