If E and B are the electric and magnetic field vectors of electromagnetic waves then the direction of propagation of electromagnetic wave is along the direction of:

$\vec{E}$ $\vec{B}$ $\vec{E}\times\vec{B}$ None of these

$\vec{E}\times\vec{B}$

$\text{Direction of propagation is given along }\vec{S} = \vec{E}\times\vec{B}$