A plane electromagnetic wave travels in vacuum along y-direction. At the same instant, the direction of Electric and magnetic fields are:

E along z-axis ; B along y-axis E along x-axis; B along z-axis E along z-axis; B along x-axis E along y-axis; B along z-axis

E along z-axis; B along x-axis

The correct answer is Option (3) → E along z-axis; B along x-axis