Forester Investment Group manages a risky portfolio with an expected rate of return of 19.2% and a standard deviation of 28.7%. The T-bill rate is 3.6%. You, as a client, decide to invest in Forester's portfolio a proportion y of the investment budget so that the complete portfolio will have an expected rate of return of 17.5%. What is the standard deviation of your complete portfolio return?

a.

25.57 %

b.

20.82 %

c.

28.70 %

d.

26.45 %

e.

23.07 %