Answer: "She is the starling of the team" is the grammatically correct sentence.
Explanation: In this sentence, "is" acts as the linking verb. It is a form of the linking verb "to be". However, "to be" has another form, "are". The type of verb to be used can usually be determined by how the sentence sounds.
The main way of deciding the verb to use is to relate it to the noun which is performing the action. If the noun itself is singular, "is" must be used whereas for plural nouns "are" is to be used.
When the form of verb is in accordance to the subject, it is called subject-verb agreement.
In the given sentence, the subject is "she". Thus, the subject is singular. As a result, "is" is used and the correct sentence is "She is the starling of the team".
To learn more about linking verbs, refer to this link:
brainly.com/question/14955768