The risky portfolio expected return and standard deviation is $14\%$ and $20\%,$ respectively. The risk free rate is $5\%.$ The risk aversion coefficient A is $2\mathrm{.}5$ and $4$ for Mary and Kim, respectively. Answer the following questions:

A$.$ Who is more risk averse?

B$.$ What is the capital allocation y to the risky portfolio for each investor?

C$.$ Suppose investors have the following utility function:

U $=$ E$($R$)(1)/(2)$ A$2$

Calculate the Utility level for each investor$$s optimal complete portfolio.