$-9.$ Alana recently rearranged her portfolio so that it has a higher average return. As a result of this rearranging, Alana raised

a$.$ both the firm$-$specific risk and the market risk.

b$.$ the firm$-$specific risk, but not the market risk.

c$.$ the market risk, but not the firm$-$specific risk.

d$.$ neither the market risk nor the firm$-$specific risk.