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.

If a call option is priced higher than the binomial model predicts, investors can earn a return in excess of the risk-free rate by:
Option A:investing at the risk-free rate, selling a call, and selling the underlying.
Option B:borrowing at the risk-free rate, buying a call, and buying the underlying.
Option C:borrowing at the risk-free rate, selling a call, and buying the underlying.

Answer: C