India has struggled to maintain a sense of national unity for which of the following reasons? A. Because of religious groups' desire for greater autonomy
B. Because of the country's continued reliance on foreign aid
C. Because of the costs associated with maintaining a modern military
D. Because of the government's failure to develop a mixed economic system

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.