The Table Below Gives the Historic Return Over the Past

The table below gives the historic return over the past five months for the market portfolio and two assets: A and B. Which of the answers below best describes the historic beta for A and B? $$\begin{array} { | c | c | c | c | } \hline \text { Month } & \text { Market } & \text { Asset A } & \text { Asset B } \\\hline \mathbf { 1 } & 3 \% & 5 \% & 4 \% \\\hline \mathbf { 2 } & - 5 \% & - 6 \% & 4 \% \\\hline \mathbf { 3 } & 1 \% & 4 \% & 4 \% \\\hline \mathbf { 4 } & - 10 \% & - 12 \% & 4 \% \\\hline \mathbf { 5 } & 6 \% & 10 \% & 4 \% \\\hline\end{array}$$

A) ?_A < 0; ?_B = 0
B) ?_A > 0; ?_B = +1
C) ?_A > 0; ?_B = 0
D) ?_A > +1; ?_B = 0
E) ?_A < -1; ?_B = +1