If a transformer supplies a load current of 60 A at 0.8 power factor lagging on its lv side, what is the primary current and its power factor?
A) Primary current is 60 A, power factor is 0.8 lagging.
B) Primary current is 60 A, power factor is 0.8 leading.
C) Primary current is 75 A, power factor is 0.8 lagging.
D) Primary current is 75 A, power factor is 0.8 leading.
