Which of the Following Would Count as an Objection to Singer's

Multiple Choice

Which of the following would count as an objection to Singer's assumption of a principle of impartiality or universalizability?

A) Since moral theories should be grounded in reason, moral principles should be able to be universalized without generating any logical contradictions.
B) Since humans are social creatures, their moral worth depends largely on their relationships to others and their communities. People therefore should have stronger obligation to those with whom they stand in special relationships, such as family members, friends, or fellow citizens.
C) People are unable to psychologically care about those very far away. Since psychology should be a basis for morality, we should only be obligated to those close to us that we are able to care about.
D) When resources are being distributed, it is not always best to distribute them impartially in equal amounts to everyone since that would destroy incentives for people to work harder to earn more.