The correct answer is A) Potentially.
Some human beings simply do not have full moral status, because they do not actually have the ability to think and communicate (for example, those in a persistent vegetative state). The Method II criterion that is assumed by this claim is Potentiality.
The debate over the moral status of being human is a constant between thinkers and philosophers. Every human being has a soul and deserves to be treated with dignity and respect. It doesn't if is a vegetative state, in Coma, or whatever its situation is, he/she is a conscious being and has the right to live. All human beings have equal and moral worth, no matter the gender, the age, the race, or nationality.