When two or more subjects are joined by and, a/an

verb form
must be used in order to ensure subject-verb agreement.
• A. infinitive
• B. participial
• C. singular
• D. plural

1 answer

D. plural

When two or more subjects are joined by "and," a plural verb form must be used to ensure subject-verb agreement. For example, "The cat and the dog **are** playing in the yard."