Consider the statements: I: $ (\sqrt { \minus{} 4})(\sqrt { \minus{} 16}) \equal{} \sqrt {( \minus{} 4)( \minus{} 16)}$, II: $ \sqrt {( \minus{} 4)( \minus{} 16)} \equal{} \sqrt {64}$, and $ \sqrt {64} \equal{} 8$.  Of these the following are [u]incorrect[/u].

$ \textbf{(A)}\ \text{none} \qquad \textbf{(B)}\ \text{I only} \qquad \textbf{(C)}\ \text{II only} \qquad \textbf{(D)}\ \text{III only} \qquad \textbf{(E)}\ \text{I and III only}$