B5: Subject-Verb Agreement, Collective Nouns: Because collective nouns are counted as one, they are singular and require a singular verb. See Writing for Success Section 2.2 pp. 60-61 or RULE 7 at the following: https://valenciacollege.edu/osceola/mainlab/documents/13RulesofSubject-VerbAgreement.pdf
Words like audience, family, team, committee, group, etc. are collective nouns
The family is getting restless.
The Marines is a valiant organization.