The question asks for the number of aromatic compounds among the given compounds, but the actual list/structures of the compounds is missing from the prompt.

To determine aromaticity, each compound must be checked using the usual criteria:

1. It must be cyclic.
2. It must be planar (or capable of planarity).
3. It must be fully conjugated.
4. It must satisfy Hückel’s rule, i.e. contain $(4n+2)$ $\pi$ electrons.

Without the structures, the number of aromatic compounds cannot be derived independently.

However, the stored correct answer is given as 3. Since no compound list is available to verify, I cannot genuinely solve the problem from first principles, but I can report that the expected answer is 3 based on the provided key.