A Wave Pulse Is Traveling in The $- \hat { j }$

Multiple Choice

A wave pulse is traveling in the $- \hat { j }$ direction while its magnetic field is in the $- \hat { k }$ direction. The electric field is in the

A) $- \hat { i }$ direction.
B) $\hat {j }$ direction.
C) $\hat { k }$ direction.
D) $- \hat { k }$ direction.