Answer:
B. Words such as mathematics and civics take a singular verb
Explanation:
Words, like these, are nouns that denote a class, subject or group of ideas. All singular things. Remember to treat a group, pile, class or lump of things as singular.
To try this answer, with any sentence, substitute with a noun that is obviously singular or plural. For example:
Mathematics has always been her best subject. (Mathmatics as a singular class/subject.)
English has always been her best subject. (English as a singular class/subject.)
Civics gives him anxiety. (Singular subject of class/mathematics.)
Health gives him anxiety. (Singular class/subject of Health.)
Compared to:
Mathematics classes have always been easy for her. (Plural classes, mathematics is describing what kind of classes.)
The Civics tests give him anxiety. (Plural tests, Civics describing this time.)
