I believe it is A because it explains that their sons intruded their streets.
The answer is C because that’s what i picked and it was right
A misplaced modifier is a word, phrase, or clause that has landed in the wrong place in the sentence. A modifier must be placed next to the word it modifies. When the modifier is incorrectly placed, the sentence either communicates meaning the writer did not intend--or makes no sense at all!
Primary and secondary resources sounds like that might be the answer you’re looking for.