the answer to your question is the civil rights movement caused the assassination of Dr.Martin Luther King Jr. However, you'd better try to write it yoursefl or rather check Prime Writing site whether they have a similar article on their blog.
I think its B. because you can also say the sentence like when he paid, the man met his blah blah blah.
I hope this helps you!
I believe you mixed the question with these answers, because the word broached doesn't refer to any of these answers - first of all, it is a verb, and all of the options are nouns.
The meaning of this verb is <span>made a way into.</span>
