Multicultural education<span> is a set of strategies and materials in education that were developed to assist teachers when responding to the many issues created by the rapidly changing demographics of their students. It provides students with knowledge about the histories, cultures, and contributions of diverse groups; it assumes that the future society is </span>pluralistic<span>. It draws on insights from a number of different fields, including </span>ethnic studies<span> and </span>women studies, but also reinterprets content from related academic disciplines.
What literature is this in?
Sentence A has a disagreement between "were" (plural) and "no one" (singular).
Sentence B has a disagreement between "was" (singular) and "problems" (plural).
Sentence C, however, has complete agreement between the subject and verb. Therefore, the answer is C.