Answer:
A sound of thunder is used to represent the T-Rex steps and Travis's gun. The two things that cause giant turns in the story. The butterfly Eckels kills is easy—the butterfly effect. Also, butterflies represent freedom, a freedom he killed when his actions changed the outcome of the election.
Explanation:
I don't know if it helped
A predicate nominative is the first noun following a linking verb such as the verb to be in all of its forms. A predicate adjective is the first adjective after it. Having this in mind, as well as the fact that the word <em>tasty </em>is an adjective, and not a noun, the correct answer is indeed B. predicate adjective, you are right. :)