A. Capacitors 
B. Inductors
C. Resistors
D. Synchronous phase modifiers at the receiving End.
B. Inductors
C. Resistors
D. Synchronous phase modifiers at the receiving End.
Answer: D. Synchronous phase modifiers at the receiving End.
Explanation:
synchronous compensator:
- If it is under the excited condition, it draws the lagging current and, therefore, supplies capacitive or absorbs inductive volt-ampere reactive.
 - Thus, a current drawn by a synchronous capacitor or condenser can be varied from lagging to leading smoothly by varying its excitation.
 - Synchronous Condensor is also known as Synchronous Compensator or Synchronous Phase Modifier.
 - A synchronous condenser or a synchronous compensator is a synchronous motor running without a mechanical load.
 - It can generate or absorb reactive volt-ampere (VAr) by varying the excitation of its field winding.
 - It can be made to take a leading current with over-excitation of its field winding.
 - In such a case it delivers inductive or absorbs capacitive volt-ampere reactive.
 - If it is under the excited condition, it draws the lagging current and, therefore, supplies capacitive or absorbs inductive volt-ampere reactive.
 - Thus, a current drawn by a synchronous capacitor or condenser can be varied from lagging to leading smoothly by varying its excitation.
 - Synchronous phase modifiers are installed at load end.
 - Synchronous phase modifiers do not carry Load.
 - Synchronous phase modifiers are nothing but synchronous motors.