The correct answer is D) Conductivity will increase. As the temperature of an intrinsic semiconductor increases, the thermal energy provided to the electrons within the material increases. This allows more electrons to break free from their atomic bonds and become available for conduction, thereby increasing the overall conductivity of the semiconductor. This is a fundamental property of intrinsic semiconductor materials and is a key principle underlying the operation of many electronic devices. The other answer choices are incorrect because they do not directly relate to the effect of temperature on intrinsic semiconductor operation. Inductive and capacitive reactance, as well as resistivity, are not directly affected by the temperature-induced changes in semiconductor conductivity.