David is very glad that his school offers free lunch to students from poor families. His family qualifies for the program and definitely benefits from it, but David is certain that if they were very rich he would still want schools to offer free lunches to those who qualify, even though the program is funded by state taxes. David's thinking is most closely aligned with:

a.Moral Relativism

b.Rawlsian Justice

c.Deontological Ethics

d.Difference Principle