According to the first paragraph, the Newark Earthworks are______.A．the product of some gi

According to the first paragraph, the Newark Earthworks are______.

A．the product of some giant celestial spirit who went crazy with an Etch A Sketch

B．a series of huge geometric mounds that the Hopewell people created two millennia ago

C．the Octagon and a perfect 20-acre circle which it is connected to

D．the structure that is precisely aligned with the 18.6-year lunar cycle"s northernmost moonrise

请帮忙给出正确答案和分析，谢谢！