Explain why the answer is D$.$

A solution of $C{o}^{2+}$ ions appears red when viewed under white light. Which of the following statements is true about the solution?

$($A$)$ A spectrophotometer set to the wavelength of red light would read a high absorbance$.$

$($B$)$ If the solution is diluted, the amount of light reflected by the solution will decrease.

$($C$)$ All light with a frequency that is lower than that of red light will be absorbed by it$.$

$($D$)$ Electronic transmissions within the solution match the wavelength of red light