A. The Sun's energy leaves as radiation of a single wavelength but can change wavelengths along the way, with the shortest wavelengths being particles that gained the most energy on the path to Earth.
B. The Sun's energy leaves as radiation of a single wavelength but can change wavelengths along the way, with the shortest wavelengths being particles that lost the most energy on the path to Earth.
C. The Sun's energy arrives as radiation with a wide range of wavelengths and the more energetic the wave the shorter the wavelength.
D. The Sun's energy arrives as radiation with a wide range of wavelengths and the more energetic the wave the longer the wavelength.
which is true