which sentence demonstrates correct subject verb agreement?

To determine which sentence demonstrates correct subject-verb agreement, we need to understand the concept first. Subject-verb agreement is the rule that states that the subject of a sentence must agree in number with the verb. In other words, if the subject is singular, the verb should also be singular, and if the subject is plural, the verb should be plural as well.

Now, let's consider some example sentences:

1. "The dog run in the park."
2. "The dogs runs in the park."
3. "The dog runs in the park."
4. "The dogs run in the park."

Out of these four sentences, the correct one that demonstrates subject-verb agreement is sentence 3: "The dog runs in the park."

In this sentence, the subject ("the dog") is singular, and the verb ("runs") is also singular. They agree in number, following the subject-verb agreement rule.