Which sentence displays correct subject-verb agreement? The herd of cattle are huge!

The staff at the library are very helpful.

My collection of stamps is extensive.

The crew of workers are finishing the job.

The sentence that displays correct subject-verb agreement is:

Let's understand what Subject-Verb Agreement is all about.

Thus, in the selected option, "My collection of stamps" is the subject and it is singular, therefore the verb "is" is singular.

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My collection of stamps is extensive.

Explanation:

The words 'herd,' 'staff,' 'collection,' and 'crew' are collective nouns. Collective nouns are considered as singular nouns, so they require singular verbs.

showing or suffering from nervousness, fear, or a lack of confidence

nominative