The sequence of states $\left(Q_{1} Q_{0}\right)$ of the given synchronous sequential circuit is - $\_\_\_\_\_\_\_$.
- $00 \rightarrow 10 \rightarrow 11 \rightarrow 00$
- $11 \rightarrow 00 \rightarrow 10 \rightarrow 01 \rightarrow 00$
- $01 \rightarrow 10 \rightarrow 11 \rightarrow 00 \rightarrow 01$
- $00 \rightarrow 01 \rightarrow 10 \rightarrow 00$