The thesis statement should be in the C. Introduction
The answer is D because vegetables is plural and does not need an apostrophe. Also, vegetables is not a possession therefore why you wouldn't use 'vegetables.'
C. Sea horses are very unusual fish.
The word "fish" is a predicate nominative in letter C sentence. This is because a predicate nominative, also known as subject complement, is a noun or pronoun that follows a linking verb and renames the subject.
Sea horses - subject; are - verb; very unusual - adjectives; fish - predicate nominative.
A - Fish - subject
B - will fish - verb
D - fish - object
