What best describes the relationship between law and ethics

a. Ethics inform values and standards which laws are based.However, when applied to particular problems using the IRAC method, the law doesn't always lead to ethical outcomes.

b. The is no clear relationship between law and ethics, and application of the law almost always results in unjust outcomes.

c. Ethics sets values and standards which laws are based so that strictly applying the "letter-of-the-law" using the IRAC method will always lead to ethical outcomes.

d. The law ensures ethical conduct by enforcement of rules via sanction