Answer
$\Phi_{EA}=\frac{+q}{\epsilon_0}$.
$\Phi_{EB}=\frac{+q}{\epsilon_0}$.
$\Phi_{EC}=\frac{+2q}{\epsilon_0}$.
$\Phi_{Ed}=0$.
Work Step by Step
To calculate the flux, we can divide the enclosed charge by $\epsilon_0$.
Surface A encloses +q.
Surface B encloses +q.
Surface C contains both charges, a total of +2q.
Surface D encloses no charges.