What Is the Difference Between Objective Obligation and Subjective Obligation

What is the difference between objective obligation and subjective obligation?

A) Your objective obligation is what you really ought to do, whereas your subjective obligation is what you believe you ought to do.
B) Your objective obligation is what you really ought to do, given the way the world actually is, whereas your subjective obligation is what you would be obligated to do if all of your beliefs were true.
C) Your objective obligation is what you ought to do from a scientific perspective, whereas your subjective obligation is what your religion says you ought to do.
D) Your objective obligation is what you ought to do, based solely on reasoning available to people of all religions, whereas your subjective obligation is what you ought to do given your particular religious beliefs.