What is the difference between an on-delay timer and an off-delay timer?

What is the difference between an on-delay timer and an off-delay timer?

• A. On-delay starts timing after input energizes; Off-delay times after input de-energizes before turning off
• B. On-delay starts timing after input energizes; Off-delay times after input energizes as well
• C. On-delay times after input de-energizes; Off-delay times after input energizes
• D. On-delay and Off-delay are identical

Answer: (A)