What type of visual aid would best represent this idea?

"What's to blame for this rise in mercury? An out-of-whack greenhouse effect. After sunlight hits Earth's surface, waves of infrared radiation, or heat energy, radiate back up toward the atmosphere."

a.

cause and effect chart showing how the greenhouse effect works

c.

both of these

b.

cause and effect chart explaining why infrared radiation, and heat energy radiate towards the atmosphere

d.

neither of these