What Is the Beta of a Portfolio That Consists of the Following

Multiple Choice

What is the beta of a portfolio that consists of the following?
$\begin{array}{ccc}\text { Security } &\$ \text { Invested}& \text { Beta }\\\text { A } & \$ 2,000 & 1.38 \\\text { B } & 5,000 & .47 \\\text { C } & 9,000 & 1.70 \\\text { D } & 4,000 & 1.08\end{array}$

A) 1.18
B) 1.22
C) 1.24
D) 1.32
E) 1.37