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 category of persons who would be most likely to be harmed by an increase in the rate of inflation is:
Option A:homeowners with fixed 30-year mortgages.
Option B:retirees relying on a fixed annuity payment.
Option C:workers employed under contracts with escalator clauses.

Answer: B