ITEM 7: Photovoltaic (PV) panels receive a broad spectrum of light during the daytime. The spectrum includes short wavelength ultraviolet radiation to longer wavelength infrared radiation. Which of the following is a true statement concerning PV panels and solar radiation? a. PV panels respond most favorably to the visible part of the spectrum. b. Shorter wavelength photons will not trigger the photoelectric effect. c. Longer wavelength photons will be absorbed, but cause heating of the panel. d. All of the above are true statements.