How do greenhouse gases such as CO2 and N2O contribute to an increase in Earth’s atmospheric temperature?

A>Greenhouse gases interact with infrared photons and reflect them back to Earth’s surface.
B>Greenhouse gases chemically react with one another, releasing heat in the process.
C>Greenhouse gases agitate visible light photons, increasing the photons’ temperature and motion energy.
D>Greenhouse gases generate internal heat through radioactive decay, similar to the core of Earth.