In a closed economy, investment must be equal to private saving

Which of the following statements is false?

A) At equilibrium in a market, scarcity does not exist. B) If there is a shortage of 100 units at a price of $2 per unit, the shortage will be greater than 100 units at a price of $1 per unit. C) If there is a surplus of 30 units at a price of $3, the surplus will be less than 30 units (or even nonexistent) at a price of $2. D) If there is a surplus, suppliers will not be able to sell all they had hoped to sell at a particular price.

After being introduced in 1999, the euro

A. increased in value through 2008. B. decreased in value through 2008. C. increased in value through 2000 but then decreased in value through 2008. D. decreased in value through 2000 but then increased in value through 2008.