PLEASE HELP Which of the following is an example of an organism's response to an internal stimulus in order to maintain homeostasis?

A. A predator scares a rabbit and he runs for safety.

B. The temperature drops in Canada so the birds migrate south.

C. A bird is hungry so he searches for food.

D. The Sun causes a plant to increase its temperature.

E. A student feels the outside cold temperatures and puts on a hoodle.

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.

well, i believe that the answer is 2. : 3