<span>The answer to this question is that characters' motivation 'propels the plot'. The whole story usually begins due to someone's motivation to do something, and so the plot unravels. </span>
I have no idea what B is suppose to be but I believe the answer would be either C , I would go for C because thats how it usual goes in movies and books, yeah I would put my money on C, tell me if it is correct or not, sorry if it isnt