He tells them what can he do to figure out his solution to the problem.
The correct answer would be B) No because there is only one negative in the sentence and that would be ''aren't'' since that means are not, so since that's only one, and not two, its not a double.
Answer:
Dinosaurs coming back and killing me.
Explanation:
This is irrational because dinosaurs will never come back to life (yes i love Jurassic Parks too, but that is impossible).