Answer:
d) redistributive taxation is unjust unless it remedies some past injustice
Step-by-step explanation:
Rawls and Nozick were two American Philosophers, who took stand for inequality and injustice in U.S.
They both oppose the progressive system, which favors increase of tax as a share of the base size increases.
According to Rawls and Nozick, redistributive taxation should provide benefit to the people who have faced injustice in past through any mechanism such as schools, direct transfer, health care or other program that improve prospects of the poorest and injustice people.
Hence, the correct answer is d.