Suppose that there is new research suggesting that for human males, having blue hands has a similar effect on reproductive success as does having a large, symmetrical tail for a Peacock. As an evolutionary psychologist, you are skeptical of this claim. What is the best combination of evidence supporting this new research claim?
A) Having blue hands is heritable, incurs some sort of cost to the individual, and modulates the attractiveness of the individual to potential mates.
B) Having blue hands is heritable, does not incur a cost to the individual, and modulates the masculinity of the individual to potential mates.
C) Having blue hands is not heritable, incurs some sort of cost to the individual, and modulates the attractiveness of the individual to females depending on the time point the female is at in her menstrual cycle.
D) Having blue hands is not heritable, but males who have blue hands have a lot of offspring.
Anaswer: A