The correct answer is C. humans
Language is an advanced system for communication available only to humans. Dolphins, chimps, and bees, use other means to communicate, but it is not a language, it's mostly things like smells or pheromones or similar things.
Wind forms when the sun heats up one part of the atmosphere differently that another part.
1) a series of circulation cells for the tropics, (2) a series for the polar regions and (3) a very dynamic series of cells in the midlatitudes
