Final answer:
According to Wein's Law, a blackbody emits the most energy at the shortest wavelength, meaning higher temperatures result in shorter emission wavelengths.
Step-by-step explanation:
According to Wein's Law, a blackbody emits the most energy at the shortest wavelength. The law indicates that as the temperature of a blackbody increases, the wavelength at which the maximum power is emitted becomes shorter. In other words, higher temperatures correspond to emissions at shorter wavelengths, which means higher frequencies and energy. Obvious examples in everyday life include an electric stove burner that glows red at lower temperatures and becomes orange-red, then yellow, and blue-white as the temperature increases indicating shorter and shorter emission wavelengths.
Therefore, amongst the given options in the question, the correct answer is (a) Shortest wavelength.