External factors in decision making include all of the following except:
a.
ethics
b.
media and society
c.
economic factors
d.
peers and family

The correct answer is A.ethics, as ethics are by definition your own personal or internal moral compass or set of values. Your ethics may be influenced by broader reading or mediafor example but it is still your own view of the world. This is as opposed to the other terms offered as answers that reference completely external influences.