The system, which developed in Europe, began when groups of artisans banded together to establish prices and support their trade. A. Pnyx
B. leisure
C. tax
D. guild
Please select the best answer from the choices provided

If we represent the solar system on a scale that allows us to walk from the sun to pluto in a few minutes, then a) the planets are microscopic and the stars are millions of miles away. b) the planets are the size of basketballs and the nearest stars are a few miles away. c) the planets are marble size or smaller and the nearest stars are thousands of miles away.