Which Statement Best Describes the Author's View of the Minimum

Which statement best describes the author's view of the minimum requirements to have universal health insurance?

A) Health insurance must be compulsory for the lower-income two thirds of the population and payments must be proportional to income.
B) Health insurance must be compulsory for the lower-income three quarters of the population.
C) Health insurance payments and co-pays must be proportional to income.
D) Health insurance must be compulsory for the young and healthy as well as the old and infirm.