A Researcher Raises a Sample of Unrelated Macaque Monkeys in Identical

A researcher raises a sample of unrelated macaque monkeys in identical laboratory environments. He finds significant differences among these monkeys in their preference for novel visual stimuli. What might the researcher legitimately conclude concerning the relative effects of nature and nurture on the preference for visual novelty?

A) Nurture has a major influence on the monkeys' preference for visual novelty.
B) Nature has a substantial influence on the monkeys' preference for visual novelty.
C) Both nature and nurture have an equal influence on the monkeys' preference for visual novelty.
D) Neither nature nor nurture has the ability to regulate the monkeys' preference for visual novelty.