Green house gases:
A. increase the heat exiting the atmosphere.
B. releases heat into the atmosphere.
C. trap heat in Earth's atmosphere.
D. reflect heat from the Sun into the upper atmosphere.
E. prevent the Sun's energy from reaching Earth.

trap heat in Earth's atmosphere

Explanation: Greenhouse gases can be defined as any gas, such as carbon dioxide or CFCs, that contributes to the greenhouse effect (The process by which a planet is warmed by its atmosphere.) when released into the atmosphere. This occurs due to greater transparency of the atmosphere to visible radiation from the sun than to infrared radiation emitted from the planet's surface

C. trap heat in Earth's atmosphere.

Explanation:

Greenhouse gases -

These gases are responsible to absorb the radiation of the sun , and resists the planet earth from freezing , because of the trapped radiation , is referred to as the greenhouse gases .

The example of greenhouse gases are -

water vapor , methane , carbon dioxide , ozone , nitrous oxide etc.

Greenhouse gases helps to maintain the temperature of the planet earth to sustain life .

Hence , from the given question ,

The correct option is C.