14. Which of the following experiment samples lacks face validity?

a hypothesis regarding income levels and successful marriages; an experimental design, including divorced and married couples

a hypothesis regarding the lifespan of a queen bee whose wings have been clipped; an experimental design that includes beekeepers and bees

a hypothesis stating people who went to school for trades were more likely to find a job than those who went to school for a bachelor's degree; an experimental design that studies the number of jobs in various fields

a hypothesis regarding athletes and low cholesterol; an experimental design, involving chimpanzees in their natural habitat