Which statement correctly explains the aspect “Transition to interrogation” in the example “الِاسْتِفْهَامُ”?

Inshāʾ and Tamannī: Requests, Wishing, Exhortation, and Reproach

• Examples of non-requesting inshāʾ — How excellent a man Zayd is!
• Interrogative hal used as a wish — Would that I had an intercessor.
• Hallā and alā — Why not? / Come, do it.
• Transition to interrogation — Questioning in order to ascertain a meaning.