What Is the Expected Return on a Portfolio Comprised of €4,000

What is the expected return on a portfolio comprised of €4,000 in share M and €6,000 in share N if the economy enjoys a boom period?
$\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad$ Returns if
$\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad$ State Occurs
$\begin{array}{|l|l|l|l|}\hline \text { State of Economy } & \text { Probability of State of Economy } & \text { ShareM } & \text { Share N } \\\hline \text { Boom } & 10 \% & 18 \% & 10 \% \\\hline \text { Normal } & 75 \% & 7 \% & 8 \% \\\hline \text { Recession } & 15 \% & -20 \% & 6 \% \\\hline\end{array}$

A) 6.4%
B) 6.8%
C) 10.4%
D) 13.2%
E) 14.0%