Which statement correctly explains the aspect “Context and the rhetorical choice of request” in the example “لَيْتَ / هَلْ / لَوْ / هَلَّا”?

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

• Context and the rhetorical choice of request — Wishing, questioning as a wish, conditional wishing, and exhortation.
• Defining tamannī — Tamannī: wishing for something desired.
• Why use hal instead of layta? — Is there an intercessor for me? / If only there were!
• Lawlā and lawmā — Why do you not do so?