Assertion (A): Z-transform is used to analyze discrete time systems and it is also called pulsed transfer function approach.

• A. : The sampled signal is assumed to be a train of impulses whose strengths, or areas, are equal to the continuous time signal at the sampling instants.
• B. Both A and R are true and R is correct explanation of A
• C. Both A and R are true and R is not correct Explanation of A
• D. A is True and R is false