A)

In which sentence below is the underlined word a predicate nominative?
(1 point)
Carmen is very interested in science, especially biology and anatomy.
Carmen plans to pursue a career as a doctor.
Carmen is a volunteer at the local hospital.

Carmen is a volunteer at the local hospital.

The underlined word "volunteer" in the sentence "Carmen is a volunteer at the local hospital" is a predicate nominative.

To identify the sentence in which the underlined word is a predicate nominative, we first need to understand what a predicate nominative is. A predicate nominative is a noun or pronoun that follows a linking verb and renames or identifies the subject.

Now, let's look at the sentences provided:

1) Carmen is very interested in science, especially biology and anatomy.
2) Carmen plans to pursue a career as a doctor.
3) Carmen is a volunteer at the local hospital.

In sentence 1, "Carmen" is the subject and "interested" is the linking verb. The underlined word is not a predicate nominative because it does not follow the linking verb.

In sentence 2, "Carmen" is the subject and "plans" is the linking verb. The underlined word is not a predicate nominative because it does not follow the linking verb.

In sentence 3, "Carmen" is the subject and "is" is the linking verb. The underlined word is "volunteer," and it renames the subject "Carmen." Therefore, the underlined word "volunteer" is a predicate nominative in sentence 3.

So, the sentence in which the underlined word is a predicate nominative is: Carmen is a volunteer at the local hospital.