2014 AMC 8 Problem 18

Four children were born at City Hospital yesterday. Assume each child is equally likely to be a boy or a girl. Which of the following outcomes is most likely?

\textbf{(A) } All 4 are boys \textbf{(B) } All 4 are girls \textbf{(C) } 2 are girls and 2 are boys \textbf{(D) } 3 are of one gender and 1 is of the other gender \textbf{(E) } All of these outcomes are equally likely

Full credit goes to MAA for authoring these problems. These problems were taken on the AOPS website.