Ryan and Ted are monozygotic twins born in 1958. Their mother gave them up for adoption. Ryan was adopted by a blue-collar family from Chicago, and Ted was adopted by a white-collar family from Minneapolis. They were reunited in 1983 and have since been part of a research study on twins. What makes them ideal candidates for this type of research?

the answer is a. monarch

answer; eliminate parking problems in cities, because a car took up only half as much space as a horse and buggy;

you answered your own : -/

i believe the answer is: returns on investments, no wages

people who belong in upper class society would most likely get there by obtaining multiple source of income, which a certain percentage of ownership for businesses. since most of them are job creator, they would most likely get their money from profit, not wages.