The answer choice should be A
I think it is the answer is because they need to make more justice
B. A house keeper wounded fall under the category of domestic and personal services because they are not professional like maids or butlers.
<span>Advanced mathematics was critical to the development of the Mayan calendar. The Maya needed a system of mathematics to record celestial movements over the years, to handle large numbers, and to calculate the solar and lunar year with great precision.</span>
