Consider the Following Discrete Probability Distributions of Payoffs for 3

Consider the following discrete probability distributions of payoffs for 3 securities that are held in a DI's trading portfolio (payoff amounts shown are in $millions) :

$\begin{array} { | l r r | } \text { SECURITY } & \text { PROBABILITY } & \text { PAYOFF } \\\text { Alpha } & 0.50 & 355 \\& 0.49 & 150 \\& 0.01 & - 300\end{array}$ $\begin{array} { lcc } \text { SECURITY } & \text { PROBABILITY } & \text { PAYOFF } \\\text {Beta } & 0.50 & 1500 \\& 0.49 & - 300 \\& 0.0025 & - 3,300\end{array}$
$\begin{array} { lcc } \text { SECURITY } & \text { PROBABILITY } & \text { PAYOFF } \\\text {Gamma } & 0.49 &400 \\&0.49&150 \\&0.01 &-150 \\&0.01&-2,000\end{array}$
What are the expected returns for securities Alpha and Beta,respectively (in millions) ?

A) -$248 and +$248
B) +$248 and +$248
C) -$300 and +$400
D) +$300 and -$3,300