The stage of Kohlberg’s postconventional level focuses on making judgments based on what best protects individuals. A.
marketplace morality
B.
social contract
C.
law and order
D.
good boy/good girl

the answer is B- social contract

Explanation:

the person above me is correct

stupid i wont let you get a chance

explanation:

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.