The resistivity of a wire depends on its
material
Explanation for correct option: In the case of option C
Explanation for incorrect options:
In the case of option A, resistivity is independent of the length as we can see from the above-explained formula.
In the case of option B, resistivity is independent of the area of cross-section as we can see from the above-explained formula.
In the case of option D, since resistivity is independent of both length and area of cross-section, all the above three factors are not the correct choice.
Thus, option C is the correct answer.