$$
\begin{aligned}
& S \rightarrow S1 \;T \\
& S 1 \rightarrow a \mid(S S) \\
& T \rightarrow \varepsilon \mid b \;T
\end{aligned}
$$
In the $\text{LL(1)}$ parser table, $M$, of the grammar the entries $M[S 1, a]$ and $M[T, a]$ respectively are -
- $\{S 1 \rightarrow a\}$ and $\{T \rightarrow b T\}$
- $\{S 1 \rightarrow(S S)\}$ and $\{T \rightarrow b T\}$
- $\{S 1 \rightarrow(S S)\}$ and $\{T \rightarrow \varepsilon\}$
- $\{S 1 \rightarrow a\}$ and $\{T \rightarrow \varepsilon\}$
