Answer: Nurture
Explanation:
The nurture in the development is one of the variable that helps in determining the individual person's social relationship, culture, behavior and the personality.
The nurture term is basically refers to the intelligence which is typically inherited from the elders, teachers and surrounding environment.
According to the given question, the Justin's mother is basically emphasize the main role of the nurture as it is one of the important factor for developing the self esteem.
Therefore, Nurture is the correct answer.
