The expressed power the Supreme Court cited when it upheld the constitutionality of the Affordable Care Act (ACA) was: the power to tax.
Explanation
Even though the Supreme Court declared that the law could never be upheld, by a decision based on the regulatory power of Congress, the Court ended accepting that it was constitutional and valid for the Congressional power to tax, as a consequence, defending the individual mandate.
The answer is definitely not pottery, as not much written about recorded history can be written on pottery. Calendars were pictographs that recorded the tribe’s history. There are even Kiowa calendar paintings that you can find images of. The answer is D: calendars.