2012 AMC 10A Problems/Problem 4

Problem 4

Let ° and °. What is the smallest possible degree measure for \qquad\textbf{(A)}\ 0\qquad\textbf{(B)}\ 2\qquad\textbf{(C)}\ 4\qquad\textbf{(D)}\ 6\qquad\textbf{(E)}\ 12 $