Gaining economies of scale is an advantage of outsourcing

Which of the following statements is true regarding social classes in the United States?

A) Social class is determined by income alone. B) Lines between social classes in the United States are fixed and rigid. C) Social classes show distinct product preferences in clothing and automobiles. D) Wealth is more critical than education level in measuring social class. E) People are relegated to a permanent social class in the United States.

Since March 1973, when exchange rates become more volatile and less predictable than during the "fixed" exchange rate period, the nominal exchange rate index of the U.S. dollar peaked in 2011

Indicate whether the statement is true or false.