Which one of the following statement is correct?A plant controlled by a proportional controller. If a time delay element is introduced in the loop its:

Which one of the following statement is correct?A plant controlled by

1.	Which one of the following statement is correct?A plant controlled by a proportional controller. If a time delay element is introduced in the loop its:
A.	Phase margin remains the same
B.	Phase margin increases
C.	Phase margin decreases
D.	Gain margin increases
Answer» D. Gain margin increases