Which pair correctly distinguishes the two constructions?

al-Ḥārith ibn Ḥillizah: Failed Refuge, Royal Power, Tribal Assembly and Mirage (verses 37–46)

• Kaʾannahum = past verb; sāqat = vocative
• Kaʾannahum = subject; sāqat = preposition
• Kaʾannahum = passive participle; sāqat = comparative
• Kaʾannahum = particle of likeness with its noun; sāqat = past verb