The transfer function technique is considered as inadequate under which of thefollowing conditions ?

Systems having complexities and non-linearities

Systems having stability problems

Systems having multiple input dis¬turbances

The transfer function technique is considered as inadequate under whic

1.	The transfer function technique is considered as inadequate under which of thefollowing conditions ?
A.	Systems having complexities and non-linearities
B.	Systems having stability problems
C.	Systems having multiple input dis¬turbances
D.	All of the above
Answer» E.