Which of the Following Is Wien's Law

Which of the following is Wien's law?

A) The maximum intensity of black-body radiation, ?_max, is inversely proportional to the temperature.
B) ?_max = constant × T where ?_max is the intensity of black-body radiation and T is the temperature in K.
C) ?_max = constant × T⁴ where ?_max is the intensity of black-body radiation and T is the temperature in K.
D) The maximum intensity of black-body radiation, ?_max, increases as the temperature increases.
E) T = 2.9 K.mm × ?_max where ?_max is the intensity of black-body radiation and T is the temperature in K.