List of all the elements of the following set :E={ x : x is a month of a year not having 31 days}

Question

$\begin{array}{1 1}(A)\;E=\{\text{February,April,June,September,November}\}\\(B)\;E=\{\text{September,November}\}\\(C)\;E=\{\text{February,April,May}\}\\(D)\;E=\{\text{February,April,June,September,December}\}\end{array} $