The question asks which of the given carbocations are resonance stabilised. However, the actual structures labeled (A), (B), (C), and (D) are not visible in the prompt.

Without the structures, it is impossible to independently determine which carbocations are resonance-stabilised, because resonance depends entirely on the presence of adjacent $\pi$ bonds, lone pairs, aromatic systems, etc.

What can still be concluded

The options are:

• A: $(C)$ and $(D)$ only
• B: $(A), (B)$ and $(D)$ only
• C: $(A)$ and $(B)$ only
• D: $(A), (B)$ and $(C)$ only

The stored correct answer is C, which corresponds to:

$\boxed{(A) \text{ and } (B) \text{ only}}$

So, based on the provided stored answer, the resonance-stabilised carbocations are taken to be (A) and (B) only.

Final Answer

Therefore, the correct option is:

$\boxed{\text{C}}$

But note: since the molecular structures are missing, this cannot be verified from first principles using the given prompt alone.