The best choice to replace "request" in the sentence is demand.
The correct option is B. Demand.
<h3>What is an online dictionary?</h3>
Dictionaries are books that contain meaning, synonyms, antonyms, etc., of words or vocabulary.
They are usually very large books and contain almost every word of a specific language.
Here, Maria is protesting to end segregation.
Thus, Request should be replaced by Demand, because protests are done to demand things.
Learn more about dictionaries, here:
brainly.com/question/1199071
