AMC 8 2013 Problem 8

A fair coin is tossed 3 times. What is the probability of at least two consecutive heads? $\textbf{(A)}\frac{1}{8} \textbf{(B)}\frac{1}{4} \textbf{(C)}\frac{3}{8} \textbf{(D)}\frac{1}{2} \textbf{(E)}\frac{3}{4}$