The correct answer is - the heliocentric system.
By using the telescope, Galileo Galilei managed to observe the movements of the Sun, Moon, the planets in the Solar System, and he was mapping their movements on the sky, and also he was comparing their movements to the Earth's position. With this, he managed to notice that insted of the popular belief that the Sun, Moon, and the other planets are moving around the Earth, that it is actually the opposite of it, and that the Sun was the center of our Solar System, and that all the planets and moons were orbiting around it, while the only object that hold its position as it was initially thought was the Moon, because it orbits around our planet. So Galileo contributed to the theory of the heliocentric system.
A. Existence of social classes...Under capitalism those who collect another's funds in a voluntary transaction become rich (if they also run their business with a high enough profit margin) whereas under socialism: A "family" (like LBJ's and their Democrat FCC broadcast monopoly "licenses") is "granted" special privileges by the "rulers" and end up from nothing to the 100's of millions
Explanation:
he/she or the old lady become an integral part of the fight for equal in American education
“Society was liberalized, and Gorbachev sought détente with the USA so as to be able to transfer funding from defense to civil society. He declared that he would not support Communist regimes in other countries if their peoples were opposed to them. He thus started a chain reaction which led to the fall of communism in Europe.”
Answer:
The answer to this question is option "A"
