Key ethical questions include:
a. Does God exist?
b. What is the ultimate source of our ideas of good and evil, right and wrong?
c. Is knowledge possible?
d. Are there objective, rationally defensible standards of right action?
e. What is the relationship between the ethical principles we are encouraged to adopt and individual self-interest?
f. What connection is there, if any, between how we ought to behave, and how we can achieve happy and contented lives?
g. all of the above h. b, d, e, f i. a and c