The Analogy of a Greenhouse Is

The analogy of a greenhouse is

A) not applicable to Earth's atmosphere in any way, and is a bizarre concept that should never have been used to describe global warming.
B) exactly how the Earth-atmosphere system operates.
C) useful, but not fully applicable because greenhouse gases merely absorb heat, thereby delaying losses to space; they do not trap heat as does the glass in a greenhouse.
D) not discussed in the chapter.