Which of the following is a historical example of a United States president expanding the powers of office based on a decision rather than a power provided in the Constitution.
A.
President William Jefferson ClintonÍs election to a second term as president.
B.
Thomas Jefferson completing the Louisiana Purchase.
C.
President William Henry HarrisonÍs short term as president.
D.
The passage of the Patient Protection and Care Act by Congress while President Obama was in office.