Which of the following best describes Rawls's wealth (difference) principle? a. Social and economic inequalities are to be arranged so that they are to the greatest benefit of the least advantaged. b. Social and economic inequalities are to be arranged so that they are attached to the offices and positions open to all under conditions of fair and equal opportunity. c. Each person is to have an equal right to the most extensive total system of liberties compatible with a similar system of liberties for all. d. From all according to their abilities; to all according to their need