With a Dual-Chamber Pacemaker There Will Be A/an

With a dual-chamber pacemaker there will be a/an:

A) initial pacing spike followed by a P wave and second pacing spike followed by a broad QRS complex.
B) wide P wave and a broad QRS but not pacing spikes
C) initial pacing spike followed by a broad P wave and second pacing spike followed by a narrow QRS complex.
D) initial pacing spike followed by an inverted P wave and second pacing spike followed by a narrow QRS complex.