2013 AMC 8 Problem 8

A fair coin is tossed 3 times. What is the probability of at least two consecutive heads?

\textbf{(A)}\ \frac18 \qquad \textbf{(B)}\ \frac14 \qquad \textbf{(C)}\ \frac38 \qquad \textbf{(D)}\ \frac12 \qquad \textbf{(E)}\ \frac34

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