The correct answer is A. VC and VR.
The phosphors for VC and VR are 180° out of phase because they are excited by different electron beams. The electron beam for VC is excited by the vertical deflection signal, while the electron beam for VR is excited by the horizontal deflection signal. The vertical deflection signal is 180° out of phase with the horizontal deflection signal, so the phosphors for VC and VR are also 180° out of phase.
The phosphors for VL and VR are not 180° out of phase because they are excited by the same electron beam. The electron beam for VL and VR is excited by the composite video signal, which is a combination of the vertical and horizontal deflection signals. The composite video signal is not 180° out of phase with itself, so the phosphors for VL and VR are also not 180° out of phase.
The phosphors for VC and VL are not 180° out of phase because they are excited by different electron beams. The electron beam for VC is excited by the vertical deflection signal, while the electron beam for VL is excited by the horizontal deflection signal. The vertical deflection signal is not 180° out of phase with the horizontal deflection signal, so the phosphors for VC and VL are also not 180° out of phase.
The phosphors for VR and VL are not 180° out of phase because they are excited by the same electron beam. The electron beam for VR and VL is excited by the composite video signal, which is a combination of the vertical and horizontal deflection signals. The composite video signal is not 180° out of phase with itself, so the phosphors for VR and VL are also not 180° out of phase.