Answer:
the nature/nurture debate
Explanation:
According to various research that has been conducted on the topic of nature and nurture, different scientists or researchers have argued that nature and nurture both play a vital role in the development of a child. Nature or genetic predisposition plays about 60% role in the development of the child whereas environmental factors play about 40% of the role in the development of a child. The concept of nature and nurture has been widely studied with identical twins who have been raised apart in different environments yet share the same genetic material.
In reference to the question, Sandy and her husband are rehearsing the nature and nurture debate.