Which of the following is the inciting incident of the story?

Omovo watches three soldiers from his window as he and his father listen to the latest news of the war on their radio.
Omovo realizes the river is filled with the corpses of grown men.
Three soldiers offer Omovo money to tell them if he sees the woman who covers her face with a black cloth.
The mysterious woman screams hysterically and one of the soldiers points his gun at her stomach.