Which of the Following Statements Is (Are) TRUE

Multiple Choice

Which of the following statements is (are) TRUE?
I. The Rawlsian social welfare function computes society's welfare by calculating the difference in utility between the top 10% and bottom 10% of income earners.
II. Economists strictly use the Rawlsian social welfare function to evaluate market performance.
III. The Rawlsian utility function only considers the utility of the least well-off person.

A) II and III
B) I, II, and III
C) II
D) III