Which of the following sentences demonstrates correct subject-verb agreement?

A. The group of students is excited about the upcoming field trip.

B. The group of students are excited about the upcoming field trip.
C. The group of students was excited about the upcoming field trip.
D. The group of students were excited about the upcoming field trip.

The correct sentence that demonstrates subject-verb agreement is: A. The group of students is excited about the upcoming field trip.

To answer your question, I would need the sentences you are referring to. Please provide the sentences for me to analyze and determine which one demonstrates correct subject-verb agreement.

To determine which of the following sentences demonstrates correct subject-verb agreement, we need to analyze each sentence and identify any instances where the subject and verb do not agree in terms of number and person.

Please provide the list of sentences so that we can evaluate them and determine the correct example.