English grammar — third conditional / inversion with "had": Fix the conditional clause to make the sentence correct. Original sentence: "Had you been told me about your problem, I would have helped you." Choose the best correction for the underlined part.

Given data

• Counterfactual past condition + result ("would have helped").
• Original uses "been told me" (faulty double object/passive).

Concept/Approach
Third conditional structure: If you had told me … → Inversion without "if": Had you told me …. Use the bare past participle after "had".

Option analysis
C. "had you told" → correct inverted conditional. ✔A/D → wrong auxiliary ("would have" in if-clause / present perfect).B → ungrammatical doubling ("Had you have told").E → original is incorrect.

Corrected sentence
"Had you told me about your problem, I would have helped you."

Final Answer
had you told