An electromagnetic wave propagates along the x-direction. The wave is polarized in the z-direction. Which of the following could be the direction of

An electromagnetic wave propagates along the x-direction. The wave is polarized in the z-direction. Which of the following could be the direction of the wave’s magnetic field? More than one answer may be correct.
a. z
b. -y
c. x
d. -z
e. y
f. -x
answer with reason thx