Indicate the products \((\mathrm{X})\) and \((\mathrm{Y})\) in the following reactions:
\(\begin{array}{lr}
\mathrm{Na}_{2} \mathrm{~S}+\mathrm{nS}(\mathrm{n}=1-8) & \rightarrow(\mathrm{X}) \\
\mathrm{Na}_{2} \mathrm{SO}_{3}+\mathrm{S} & \rightarrow(\mathrm{Y})
\end{array}\)
\(\begin{array}{ll}(\mathrm{X}) & (\mathrm{Y})\end{array}\)

1. A \(\mathrm{Na}_{2} \mathrm{~S}_{2} \mathrm{O}_{3} \quad \mathrm{Na}_{2} \mathrm{~S}_{2}\)
2. B \(\mathrm{Na}_{2} \mathrm{~S}_{(n+1)} \quad \mathrm{Na}_{2} \mathrm{~S}_{2} \mathrm{O}_{3}\)
3. C \(\mathrm{Na}_{2} \mathrm{~S}_{\mathrm{n}} \quad \mathrm{Na}_{2} \mathrm{~S}_{2} \mathrm{O}_{3}\)
4. D \(\mathrm{Na}_{2} \mathrm{~S}_{5} \quad \mathrm{Na}_{2} \mathrm{~S}_{2} \mathrm{O}_{4}\)