Several Conditions Must Be Met Before Parallel Alternators Can Be

Several conditions must be met before parallel alternators can be used, including the following: ____.

A) The output voltage of the two alternators should be the same.
B) Phase A of one machine must be in sequence with phase A of the other machine, but phases B and C in each machine may be different.
C) The phases must be connected in such a manner that the phase rotation of each machine is different.
D) Phases A and B of one machine must be in sequence with phases A and B of the other machine, but phase C in each machine must be different.