Identify the italicized part of the sentence. The subjects listed here are the elective courses for secondary schools.

If the italicized part of the sentence is the word courses, then the correct answer is predicate noun/nominative.

A predicate nominative is the first noun found after a linking verb, such as to be, or in this sentence, the verb are. You can see that the first noun following the verb are is the word courses, which means it is a predicate nominative.