Verified Answer :

Subjects and verbs
must AGREE with one another in number
(singular or plural).  Thus, if a
subject is singular, its verb must also be singular; if a subject is plural, its
verb must also be plural.


This is the website I got my information from:


https://webapps.towson.edu/ows/moduleSVAGR.htm



Answer:

 Thus, if a subject is singular, its verb must also be singular; if a subject is plural, its verb must also be plural.

Explanation: