The study of life. But since it's your opinion add how you feel about it.
I believe the answer your looking for is an omnivore <span />
Answer:
C, the temperature inside the computer
Explanation:
"An independent variable is the variable that is changed or controlled in a scientific experiment to test the effects on the dependent variable" (ThoughtCo).
So the answer would be C, the temp. inside the computer because you are changing it.