Which Would Not Be Considered an Example of a Trade-Off

Multiple Choice

Which would not be considered an example of a trade-off?

A) Brightly colored male guppies are more successful at acquiring mates than other males but are more likely to be killed by predators.
B) Humans who carry the e4 allele for the Apo-E gene are at greater risk than individuals without this allele for acquiring Alzheimer's disease and coronary heart disease.
C) Rats that are resistant to the poison warfarin have an increased need for vitamin K.
D) Flies that reproduce early in their lives do not live as long as those that reproduce late.
E) Plants of the genus Mimulus that are more resistant to herbivores produce fewer seeds.