D, if your speaking as in friendships and you know relationships. It’s d.
The digestive functions of saliva include moistening food, and helping to create a food bolus, so it can be swallowed easily. Saliva contains the enzyme amylase that breaks some starches down into maltose and dextrin. Thus, digestion of food occurs within the mouth, even before food reaches the stomach.
Answer:
A. nature versus nurture
Explanation:
Nature versus nurture debate -
Nature versus nurture controversy / debate involves extent to which the particular aspects of the behavior are the product of either acquired or inherited influences.
Nature is pre-wiring and nature is influenced via the genetic inheritance . While, nurture is taken generally as influence of the external factors after the conception.
Nature-nurture controversy is concerned with relative contribution which both influences make to the human behavior.
Hence from the question , the debate is about , nature versus nurture .
