Lewis terman's widely used american revision of binet's original intelligence test was the

no the answer is c only objects touching the earth's surface can be acted upon by an outside force

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.