Which of the following is an example of behavioral variation?
A. Parrots eat seeds, fruit, and nuts, while hawks eat meat.
B. Parrots have four claws per foot, while emus have three.
C. Parrots have bright, colorful feathers, while ostriches do not.
D. Parrots have thick, curved beaks, while hummingbirds have thin, pointed beaks.

A, parrots eat seeds, fruit, and nuts, while hawks eat meat.

Explanation:

This option is more onto the behavioral and what the parrots did, while the other options were more on the parrots physical attributions.

I hope this helped! :)

explanation: it gains negative electrons, therefore becoming negatively charged. as charge cannot be created, nor destroyed, only transferred, this leaves the wool positive. now that they have opposite charges, the two items attract.