Out of the following options which one can be used produce a propagating electromagnetic wave?

Out of the following options which one can be used to produce a propagating electromagnetic wave?

Out of the following options which one can be used to produce a propagating electromagnetic wave? (A) A stationary charge. (B) A chargeless particle (C) An accelerating charges. (D) A charge moving at constant velocity.

Out of the following options which one can be used to produced a propagating electromagnetic wave?

Which one of them is used to produce a propagating electromanetic wave?