Question $10$

Which of the following describes the operation of a positive edge$-$triggered $D$ flip$-$flop?

A$.$ The output will follow the input on the leading edge of the clock

B$.$ If both inputs are $HIG{H}_{,\text{t}\text{h}\text{e}\text{o}\text{u}\text{t}\text{p}\text{u}\text{t}\text{w}\text{i}\text{l}\text{l}\text{t}\text{o}\text{g}\text{g}\text{l}\text{e}\text{.}}$

C$.$ When both inputs are LOW, an invalid state exists.

D$.$ The input is toggled into the flip$-$flop on the leading edge of the clock and is passed to the output on the trailing edge of the dock.