At least how much money must be added to an old ticket for a new one

A．there is a clear relationship between inflation and interest rates.
B．the economy always follows particular trends.
C．the current economic problems are entirely predictable.
D．the present economic situation is better than expected.

A．point out the role the workaholic plays in the American economy.
B．defend people who are addicted to work.
C．encourage us not to worry about our imperfection.
D．consider the difficulties that confront us at middle-age.