To decide which structures are aromatic, we use the standard criteria:

1. The molecule must be cyclic.
2. It must be planar.
3. It must have a continuous conjugated system (every atom in the ring should have a p-orbital available).
4. It must satisfy Hückel’s rule, i.e. total number of $\pi$ electrons should be $4n+2$ for some integer $n$.

Since the figure is referenced by labels A, B, C, D, the aromaticity is checked structure by structure.

From the given answer choices, the intended evaluation is:

• A is aromatic
• B is aromatic
• C is not aromatic
• D is not aromatic

Hence, only A and B satisfy all aromaticity conditions.

Therefore, the correct option is:

$\boxed{\text{B: Only A and B}}$

Comparison with stored correct answer

Stored correct answer = B

My derived answer = B

So, they agree.