Identify the sentence with correct subject-verb agreement.

The sentence that demonstrates correct subject-verb agreement is "The flowers bloom in spring." In this sentence, the subject "flowers" is plural, and the verb "bloom" appropriately matches this plural subject. This consistency is essential in English grammar; the verb needs to correspond with the number of the subject to convey a clear and grammatically correct message.

For instance, if the subject is plural, like “flowers,” the verb must also be in a form that aligns with a plural subject, hence "bloom" instead of a singular form. This understanding of subject-verb agreement is crucial for clear and effective communication in written and spoken English.