Answer:
1. They will trust that Stylin' Shades offer good eye protection because an eye doctor recommends them.
Answer:B
Explanation: A linking verb connects a subject to a verb and also describes the action that is done by the subject. The linking verb cannot express an action on its own. It needs the subject of the sentence to express an action.
An example of a linking verb is "be" which is the most commonly used. The purpose of "be" is to indicate the state of the action subject in a sentence.
Take this with a grain of salt, but I believe the answer is A.
A sentence fragment is a incomplete sentence like, one that doesn't fully explain its self. fragment = came to the house, complete = Lilly came to the house to visit.