Which of the following events can also be viewed as the inciting incident

a)
jocasta's suicide

b)
solving the riddle of the sphinx

c)
the killing of laius

d)
apollo's oracle

Keep in mind that inciting is to persuade, pressure or to make a person him/her act or participate in a certain violent or unlawful situation he/she might not want to be in. So knowing this which of the following situations presented above might cause chaos or make someone participate in a violent or terrible situation which consequences would be horrible or might become horrible? Think carefully. Don't think I'm referring to C.

A. her activism in the support of equality for women