The clock signals are used in sequential logic circuits A. to tell the time of the day B. to tell how much time has elapsed since the system was turned on C. to carry serial data signals D. to synchronize events in various parts of a system E. None of the above

The correct answer is D. to synchronize events in various parts of a system.

A clock signal is a periodic signal that is used to synchronize the operations of digital circuits. It is typically a square wave with a

The clock signal is not used to tell the time of the day, to tell how much time has elapsed since the system was turned on, or to carry serial data signals.