You have the following data on three stocks:

stock beta standard deviation

a 0.41 0.15

b 0.61 0.25

c. 1.29 0.35

As a risk minimizer, you would choose stock ___ if it is to be held in isolation and stock ___ if it is to be held as part of a well diversified portfolio.

a. a; a

b. a; b

c. b; c

d. c; b