Question

In which sentence below is the underlined word a predicate nominative?
(1 point)
Responses

Carmen is very interested in science, especially biology and anatomy.
Carmen is very interested in science, especially biology and anatomy.

Carmen plans to pursue a career as a doctor.
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.