HELP PLEASE !!!!!
 According to the diagram which of these statements is CORRECT?
 A) There were 4 million American Indians in 1970. 
 Eliminate
 B) Populations have increased between 1950 - 2000. 
 C) Populations have decreased between 1950 - 2000. 
 D) Millions of persons are graphed on the Y Axis of this graph.