I would have to say a) the event that sets up the story's main conflict.
"initiate" mean to begin, or start off. The event that sets up the main conflict would most likely be the initiating event.
Hope this helps you, baii<333
A speech urging students to elect you as class president
<span>To ask how much longer the professor will live is to ask how much longer we must wait for the blessings of another world war.
"blessings" being the key word, because a world war would not bring blessings, but devastation. </span>
