HELP ME PLS Which statement best expresses the central idea of the text?
a. Experts learned about dentistry in ancient Rome by finding teeth in a drain and studying them
B. Dentistry has not changed much since the ancient Romans, as people still get cavities
C. The ancient Romans didn't know how to properly pull and dispose of teeth
D. The ancient Romans pulled teeth rather than fix them because it was faster and cheaper.

What were copernicus’s ideas about the order of the universe deemed to be dangerous to church thinking? (5 points) a.the church was invested in the idea that the earth was at the center of the universe b.copernicus was developing a new religion that would challenge the church c.the church feared his ideas threatened their control of european universities d.copernicus was a follower of luther and therefore could not be trusted