Study the given input signal and match the columns.1. a. PAM2. b. PWM3. c. PPM

• A. 1 - c, 2 - b, 3 - a
• B. 1 - a, 2 - c, 3 - b
• C. 1 - b, 2 - a, 3 - c
• D. 1 - c, 2 - a, 3 - b