The correct answer is B) increases in a predictable way. The resistance of most conducting materials, including copper wire, increases in a predictable way as the temperature increases. This is due to the increased thermal agitation of the electrons within the conductor, which leads to more collisions and scattering events, resulting in higher resistance. The other options are incorrect: A) the resistance does not remain constant, C) the change in resistance is predictable, not unpredictable, and D) the resistance increases, it does not decrease.