Assuming your hypothesis is supported, which of the following graphs predicts the response of the female cricket to the male’s song as the temperature of the female’s enclosure varies?

The correct answer for this question is this one: "
Hint 1. Predicting the outcome of the experiment if your hypothesis is supported First, review your hypothesis.

Your hypothesis states that female crickets respond to both the chirp rate of the male’s song and the local temperature when identifying potential mates. From this hypothesis, you make the following prediction: If a female cricket is at a different temperature from a male of the same species, she will not respond to the male’s song. 

Hope this helps answer your question.

Where are the functions?

Agreed i also had the same answer