Let $X(z)=\dfrac{1}{1-z^{-3}}$ be the $Z$ – transform of a causal signal $x[n]$ Then, the values of $x[2]$ and $x[3]$ are
1. $0$ and $0$
2. $0$ and $1$
3. $1$ and $0$
4. $1$ and $1$