Which of the following statements is true? a. A college degree does not influence the earnings of workers. b. The median pay of economics majors increased more in dollar terms than any other majors in 2015. c. People with 0–5 years of work experience earn more than people with 10–20 years of work experience in all major fields. d. Students majoring in economics earned more than students majoring in engineering in the U.S. in 2015.