For a plane electromagnetic wave, the magnetic field at a point x and time t is
`vec(B) (x,t) = [1.2 xx 10^(-7) sin (0.5 xx 10^3x + 1.5 xx 10^11t)hatk]T`
The instantaneous electric field `vecE` corresponding to `vecB` is :
(spped of light `c = 3 xx 10^8 ms^(-1)`)

Options

A. `vecE(x,t) = [-36 sin(0.5 xx 10^3x + 1.5 xx 10^11 t)hatj]V/m`
B. `vecE (x,t) = [36 sin (1 xx 10^3x + 0.5 xx 10^11t) hatj]V/m`
C. `vecE (x,t) = [36 sin (0.5 xx 10^3 x + 1.5 xx 10^11t) hatk]V/m`
D. `vecF(x,t) = [ 36 sin (1xx10^3x + 1.5 xx 10^11t) hati] V/m`