If the risk-free interest rate is Rf and equals the fund's benchmark, the portfolio's net asset value is P, and the hedge fund manager incentive fee is 30% of profit beyond that, the incentive fee is equivalent to receiving ______ call(s) with exercise price ________.
A. 0.3;P
B. 1;P(1+Rf)
C. 0.3;P(1+Rf)
D. 1.3;P(1+Rf)