Construct a sr latchfrom
1) two nand gates.
2) two nor gates
3)also construct sr latch with a control input.

Refer to the images for different S-R Latches.

There are 3 images attached 1 having S-R latch with 2 NAND gates 2nd having S-R Latch with 2 NOR gates and last having S-R latch with control input.

Difference between NAND gated S-R latch and NOR gated S-R latch is the output is reversed.

In latch with control input the latch will only work when the control input or Enable signal in our image is HIGH or 1.

answer(a) occurs after your prediction;