The division of the kilowatt load between two AC generators operating in parallel is controlled by the settings and characteristics of the （）.

A.120°apart
B.160°apart
C.180°apart
D.360°apart

A.number of turns of wire in the armature coil
B.number of magnetic poles
C.strength of the magnets used
D.output voltage

A.talk then released to listen
B.listen then released to talk
C.both talk and listen
D.ring the station being called