What does wāw do in wa-arsala ʿalayhim?

Supplementary Practice 20: Comparative Rhetorical Study of Sūrat al-Humazah and al-Fīl

• A purely circumstantial wāw unrelated to narrative coordination
• An oath wāw beginning a new oath
• A negating wāw affecting the preceding verb
• Coordinate the next narrative action with the prior report