The expression for an electric field in free space is \(E = {E_0}\left( {\hat x + \hat y + j2\hat z} \right){e^{ - j\left( {\omega t - kx + ky} \right)}}\), where x,y,z represent the spatial coordinates, t represents time, and ω, k are constants. This electric field

• A. does not represent a plane wave
• B. represents a circularly polarized plane wave propagating normal to the z-axis.
• C. represents an elliptically polarized plane wave propagating along the x-y plane.
• D. represents a linearly polarized plane wave.