23. According to the systematic risk principle,which one of the following determines the amount of risk premium allocated to a security?

a. systematic risk of the security

b. total surprise associated with the security c. the difference between the actual return and the expected return on the security

34.Which one of the followings is an at-the-money option? a. Acall with a $35 strike and an underlying stock price of $32;option premium is $3 b. A put with a $15 strike and an underlying stock price of $11; option premium is $2 c. A call with a $21 strike and an underlying stock price of $21; option premium is $1 d. A put with a $25 strike and an underlying stock price of $26;option premium is $1

d. total risk of the security