Which logic gate is represented by the given arrangement?

What is the output $D$ for the inputs $(A=0, B=0, C=0)$ and $(A=1, B=1, C=0)$ respectively?

Which of the following represents a $NAND$ gate?

In the given circuit, the binary inputs at $A$ and $B$ are both $1$ in one case and both $0$ in the next case. The respective outputs at $Y$ in these two cases will be

Refer to the logic circuit given below. For two inputs $(A=1, B=1)$ and $(A=0, B=1)$, the output $(Y)$ will be . . . . . . .

In a digital circuit for three input signals $(A, B, \text{ and } C)$, the final output $(Y)$ should be such that for inputs:
| $A$ | $B$ | $C$ |
|---|---|---|
| $0$ | $0$ | $0$ |
| $0$ | $0$ | $1$ |
| $0$ | $1$ | $0$ |
the output $(Y)$ should be $0$, and for all other cases, it should be $1$. Which of the following digital circuits will give such output?