Concept:Emphatic stress is used to contrast the stressed word with another word in the question.
Explanation:The capitalised word in the sentence is "requested".
This shows that the action was a polite request, not a forceful order.
Hence, the correct answer must replace "requested" with its opposite, "ordered".
The rest of the statement — "dad," "the driver," and "to open the door" — remains unchanged.
So the question that matches this emphatic stress is: "Did dad order the driver to open the door?"
Answer:B. Did dad order the driver to open the door?