Every sentence has two main parts, a subject and a predicate. A subject is one of the five major elements of clause structure. The other four are: verb, object, complement and adjunct.
Mark the incorrect statement.
Adjectives are one of the four major word classes, along with nouns, verbs and adverbs. It is a word that describes a noun, giving extra information about it.
Just one alternative about adjective is not right. Mark it.