Why, According to Mencius, Is Mozi Wrong to Advocate Equal

Why, according to Mencius, is Mozi wrong to advocate equal concern for everyone?

A) Because it is impossible for human beings to genuinely show equal concern for that many people.
B) Because Mozi fails to extend his compassion from people to animals.
C) Because ritual propriety requires special behavior toward our own parents and elders.
D) Because those with whom we have special relationships deserve more concern from us than others do.