D. Some powers are expressly given to the federal government under the constitution.
Many business owners and financial officers consider leasing an effective strategy offering flexibility, convenience and control for managing finances that provides immediate cash-flow benefits, simplifies equipment upgrades, may bring significant tax advantages, and helps achieve short- and long-term company goals.
Ceremonial is the head of the government
Donkeys and camels were mostly used for trading in the early days.
Hope this helps!
~Mistermistyeyed.