option a is incorrect and im pretty sure option d is wrong too

3 Consider the table below, which has data on Insurance status and medical expenditures for different types of professorsat Hypothetical University (HU)economics & mathematics professors. Assume that there are an equal number of economies and math professors, Assume further that econ professors all have the same level of health and math professors all have the same level of health. In 2000, every professor was offered a full Insurance contract with no premium. In 2001. HU charged any employee who wanted to keep health insurance the actuarially fair premium based on 2000 expenditures. This premium would be equal to and, as a result, professors dropped their coverage in 2001. 2000 2001 insured? Avg Expenditures Insured? Arg. Expenditures Economics Professors Yes $20 000 $20.000 Math Professors $10,000 57,000 $15,000jecon $20 000. main $15:000, math