Select the correct indirect form of the given sentence.

Vaibhav said to me, "Has your father returned from work"?

Vaibhav asked me whether my father had returned from work.

The correct indirect form of the given sentence is:

Vaibhav asked me whether my father had returned from work.

The other options are incorrect for the following reasons:

• Vaibhav asked me whether my father has returned from work. The auxiliary verb "has" should be in the past tense, "had".
• Vaibhav asked me whether my father has had returned from work. The verb "returned" should be in the past participle form "returned".
• Vaibhav asked me whether my father had been returning from work. The present perfect continuous tense "had been returning" is used to indicate an action that started in the past and is still continuing. In this case, the action of returning from work happened in the past and ended in the past, so the past tense "had returned" should be used.