The Direction of Propagation of an Electromagnetic Wave Is Given $\vec { E } \cdot \vec { B }$

Multiple Choice

The direction of propagation of an electromagnetic wave is given by

A) $\vec { E } \cdot \vec { B }$
B) $- \vec { E } \cdot \vec { B }$
C) $\vec { E } \times \vec { B }$
D) $\vec { B } \times \vec { E }$