Final answer:
The correct order in which the U.S. government branches exercised their power regarding a bill on Medicare health plans is Legislative, Executive, Judicial. Congress passed the bill, the President vetoed it, Congress overrode the veto, and the Supreme Court later found the law unconstitutional.
Step-by-step explanation:
The correct order in which the branches of the U.S. government exercised their power regarding the bill to allow citizens to choose their own health care plan under Medicare is Legislative, Executive, Judicial. This order reflects the process as follows:
Therefore, the correct answer is C. Legislative, Executive, Judicial.