The characteristic expression for a new $AB$-flip-flop is given below:
$Q_{n+1}$$\left ( A, B, Q_{n} \right )$ = $\sim A \sim Q_{n}$ $+$ $B$$Q_{n}$ , where $\sim A$ means Not $A$ or $A$ $Bar$.
Identify the CORRECT statement among these:
- If $A = 0, B = 0$ then flip flop resets.
- If $A = 1, B = 0$ then flip flop retains the last value.
- If $A = 0, B = 1$ then flip flop resets.
- If $A = 0, B = 0$ then toggles.