The term polymorphism refers to the phenomenon that a trait displays variation within a population. Which of the following is an example of polymorphic trait in a population?
A. The A, B, O blood types found in humans.
B. The loss of hair in elderly animals that are malnourished.
C. The pink or white flowers of the four o'clock flower, both pink and white individuals are prevalent.
D. Both the A,B,O blood types in humans and the pink and white flowers of the four o'clocks.
E. Both the A,B,O blood types in humans and the loss of hair in elderly animals that are malnourished.
D. Both the A,B,O blood types in humans and the pink and white flowers of the four o'clocks.
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