A Light of 485 Nm Is Presented to a Person's

A light of 485 nm is presented to a person's visual system.Which of the following is the best description of what happens next?

A) A cone system that responds to specific wavelength will respond, while other cone systems will be silent.
B) The light will not be responded to at all because that wavelength is invisible.
C) All three cone systems will respond at varying strengths.Color is perceived from the mix of those responses.
D) Only the S-cone will respond to this light, as it is out of the range of sensitivity for the other cone systems.