With an RS latch a high S and low R sets the output to _____ ; a low S and a high R _____ the output to low. A. No change, set B. Race, high C. high, reset D. set, reset E. None of the above

The correct answer is: D. set, reset

An RS latch is a bistable multivibrator, a device with two stable states. It can be used to store one bit of data. The two states are called set

and reset. The output of the RS latch is high when it is in the set state and low when it is in the reset state.

When S is high and R is low, the latch is set. This means that the output will be high. When S is low and R is high, the latch is reset. This means that the output will be low.

The other options

are incorrect. Option A is incorrect because the output does change when S is high and R is low. Option B is incorrect because there is no race condition. Option C is incorrect because the output is high when S is high and R is low. Option E is incorrect because the answer is D.