To find the suitable product of the given reaction, we need to analyze the mechanism involved.

The reaction shows a heterocyclic compound reacting with sodium in ethanol. This is reminiscent of a reduction reaction where sodium acts as a reducing agent.

1. The presence of sodium suggests that it will donate electrons to the heterocyclic compound, reducing it by adding electrons and breaking certain bonds.
2. The role of ethanol typically is to provide a proton (H⁺) which can stabilize the reduced species formed after the electron donation.
3. Given this setup, the nitrogen-nitrogen bond in the heterocycle is likely reduced, resulting in the formation of an amine.

The correct product of this reaction, therefore, should be a reduced form of the initial compound, which matches with one of the given options.

Looking at the options provided and their structures, we can conclude:

This option matches the expected product of the reduction reaction.

Thus, the correct answer is the reduced amine product shown above.