Final answer:
In the nature versus nurture debate, the relationship between nature and nurture can be compared to the relationship between identical twins and their genetic makeup.
Step-by-step explanation:
In the nature versus nurture debate, the relationship between nature and nurture can be compared to the relationship between identical twins and their genetic makeup. Option (a), identical twins, is to option (b), DNA, as nature is to nurture. Identical twins share the same genetics but can have different experiences and environments, just like nature influences our traits and nurture influences our development.