AMC 8 2013 Problem 2

A sign at the fish market says, "50$\%$ off, today only: half-pound packages for just $3 per package." What is the regular price for a full pound of fish, in dollars?$\textbf{(A)}\ 6 \textbf{(B)}\ 9 \textbf{(C)}\ 10 \textbf{(D)}\ 12 \textbf{(E)}\ 15$