Which of the Following Best Captures Woollard's Main Argument for the Claim

Which of the following best captures Woollard's main argument for the claim that proximity is morally relevant?

A) The child dying in a country far away is no different than the child who is drowning in the river that one happens to be passing.
B) Proximity is morally relevant because otherwise the requirement to aid others would be too demanding and morality would simply be too hard to live up to.
C) Proximity is morally relevant because one is more capable of helping those who are closest to oneself rather than those who are far away.
D) Proximity is morally relevant because the requirement to aid should be restricted to some but not all cases; otherwise, people's bodies and other resources would not genuinely belong to them.