B. measuring is the answer because you need to know how to measure
Answer:
B. It is cyclical.
Explanation:
Most beliefs back then were either Christianity, Judaism, Islam, Buddhism Shintoism, Daoism, Sikhism, Muism/Sinisme/Shingyo, Cao Dai or Hinduism. Mayan, Hinduism, Shintoism, Daoism and Buddhism believe in a cyclical lifestyle.
The answer isn't A,B or D because they thought the earth was flat, weren't astronauts and believed in Mayan Gods.
<3 Enjoy,
Dea
AD means Anno Domini - in the year of lord and it means the last 2015 years ("of our time).
CE means the same and it stands for "Common Era" or "Cristian Era"
BCE is the time before this: it stands for Before Current Era