You are considering investing in one of the these three stocks:

Stock

Standard Deviation

Beta

A

$8\%$

$1\mathrm{.}59$

B

$10\%$

$0\mathrm{.}61$

C

$12\%$

$1\mathrm{.}29$

If you are a strict 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; B$.$

B; A$.$

C; A$.$

C; B$.$

A; A$.$