A flip-flop: A. is a combinational logic device B. is a sequential logic device C. remembers what was previously stored in it D. (a) and (c) E. None of the above

is a combinational logic device
is a sequential logic device
remembers what was previously stored in it
(a) and (c) E. None of the above

The correct answer is D. (a) and (c).

A flip-flop is a sequential logic device that stores one bit of data. It is a bistable multivibrator, meaning that it has two stable states, and can be used to store binary data. Flip-flops are used in a variety of digital circuits, including counters, registers, and memories.

A combinational logic device is a digital circuit that produces an output signal that is a function of its input signals. The output of a combinational logic device is determined solely by the present state of its inputs, and does not depend on any previous states.

A sequential logic device is a digital circuit that produces an output signal that is a function of its input signals and its previous state. The output of a sequential logic device depends on the present state of its inputs, as well as the previous state of the device.

A flip-flop is a sequential logic device because it has a state that is remembered from one clock cycle to the next. The state of a flip-flop is determined by the inputs to the flip-flop and the previous state of the flip-flop.

Option A is incorrect because a flip-flop is a sequential logic device, not a combinational logic device.

Option B is incorrect because a flip-flop is a sequential logic device, not a combinational logic device.

Option C is correct because a flip-flop remembers what was previously stored in it.

Option E is incorrect because the correct answer is D. (a) and (c).