Explanation

Note According to KMU MDCAT answer key the correct answer is 'C'

A black body is an ideal radiator that radiates energy unequally at all wavelengths.

The intensity of radiation emitted by a black body varies with wavelength, following Planck's law.

The spectral distribution of this radiation is characterized by a peak wavelength that shifts depending on the temperature of the black body, which is described by Wien's displacement law.