Which is not true about social contract theory and kantianism

a. both view a proposed moral rule as acceptable by considering the net happiness that would result if everyone always followed the rule in social contract theory, adopted rules are enforced to protect rights of the members of society.
b. kantianism considers rules as morally acceptable if they meet the requirements of the categorical imperative

Option (B)

Explanation:

Kantianism is referred to as or known as the philosophy of the German philosopher Immanuel Kant, a German philosopher born in Kaliningrad. The term Kantianism is mostly used in order to describe the contemporary or modern positions or state in philosophy of epistemology, mind and ethics.

In discipline such as political and moral philosophy, social contract is referred to as a theory or a model which has originated at time or era known as Age of Enlightenment, thus is mostly concerned about legitimacy of authority or power of state over an individual.

there is an explationation of this on a site called crash   course world history 1

in 342 bc j._c. egypt fell into the hands of the persians, under the reign of nectanebo ii

greek city-states unite in a revolt against the persian empire at the beginning of the fifth century bc. j.-c  

from the year 660 or 659 bc ad, cyrus preached the revolt against the medes to deliver the persians.