What digital gate would produce the following timing diagram? A$,$ B are the inputs, Z is the output. Note that the waves are drawn over a $2$d grid so that is is easier for you to pick up the $0->1$ and $1->0$ transitions of the signals

Untitled$-6.$png

Group of answer choices

SR latch NAND based

D flip$-$flop negative edge triggered

None of the options

SR latch NOR based

D flip$-$flop positive edge triggered