What is the correct stereochemical assignment for each of the following alkenes?

Question

$\begin{array}{1 1} I = E; II = Z; III = E; IV = Z \\ I = Z; II = E; III = E; IV = E \\ I = E; II = E; III = Z; IV = Z \\I = E; II = E; III = Z; IV = E \end{array}$