Answer what was shi huangdi role in his era

Which statement is a good description of a model? a) models are a description of nature based only on one or two variables. b) models are testable ideas but they are not very to most people. c) models are a description of nature that predicts more accurately than real events. d) models are an approximiation of a real system that omits all but most essential variables in a system.

When the power of authority is placed in the hands of the wealthy and influential citizens this is known as a(n) i can not do it

What does the author describe in this passage