Q: You are presented with the quiz "Effective insulation has a positive impact on an animal's what?"   But you don't know the answer, so you turn to your teacher to ask for hints. He says that "staying warm has a positive impact on an animal 's survival" and "effective insulation is the way to keep the warm air warm".   So, what's the best answer to the question?

Select from:
[A]. heat energy;
[B]. survival;
[C]. water;
[D]. food;
[E]. growth;
[F]. ideas;
[G]. Energy.;
[H]. energy;
The answer is:
[B].