Sentence 1 is an example of Correct subject verb agreement
Step-by-step explanation:
The given sentence is in the form of subject verb and agreement the given subject is singular so the verb is also singular this is the basic rules for the subject verb agreement. If the verb agrees upon the subject then it is called as subject verb agreement.
This sentence pattern is employed in many sentences and there are basic set of rules for the usage of these sentences. This is correct pattern of the subject verb and agreement format.