Stocks A and B are quite similar: Each has an expected return of $12\%,$ a beta of $1\mathrm{.}2,$ and a standard deviation of $25\%.$ The returns on the two stocks have a correlation of $0\mathrm{.}6.$ Portfolio P has $50\%$ in Stock A and $50\%$ in Stock B$.$ Which of the following statements is CORRECT?

a$.$ Portfolio $P$ has a standard deviation that is greater than $25\%.$

b$.$ Portfolio $P$ has an expected return that is less than $12\%.$

c$.$ Portfolio $P$ has a standard deviation that is less than $25\%.$

d$.$ Portfolio $P$ has a beta that is less than $1\mathrm{.}2.$

c$.$ Portfolio $P$ has a beta that is greater than $1\mathrm{.}2.$