PID controlled system has

A)
All the three (i.e., P, I and D) actions in forward path
B)
All the three (i.e., P, I and D) actions in feedback path
C)
P and I actions in feedback path and actions in forward path
D)
P and I actions in forward path and D action in feedback path

Correct Answer : Option (D) :   P and I actions in forward path and D action in feedback path