Calculate the Return on an Optimal Portfolio Where the Return $2 \%$

Calculate the return on an optimal portfolio where the return on the risky asset is 5%,the return on the risk-free asset is 4%,and where the investor invests has a weight of 75% in the risky asset.

A) $2 \%$
B) $3.50 \%$
C) $4.75 \%$
D) $5.25 \%$