Final answer:
The comprehensiveness principle of Medicare refers to offering inclusive coverage and aims to provide a wide range of healthcare services for the elderly, although it has faced criticism for certain gaps in coverage.
Step-by-step explanation:
The comprehensiveness principle of Medicare means inclusive or broad coverage. This principle suggests that Medicare aims to cover a wide range of healthcare services for its beneficiaries, who are primarily people over the age of sixty-five. The correct option reflecting the comprehensiveness principle is B) Inclusive coverage. However, Medicare has been criticized for not covering some expenses, like prescription drugs, resulting in gaps in coverage. On the issue of individual responsibility, the individual mandate provision of the 2010 U.S. healthcare reform required everyone to have insurance or pay a penalty, which is option C).