In 2001, which of the following countries replaced its currency with the U.S. dollar?

The U.S. is the world's largest creditor

Indicate whether the statement is true or false

If Y = $500 billion, autonomous consumption = $300 billion, and the marginal propensity to save = 0.20, then saving will equal

a. –$200 billion b. $200 billion c. –$100 billion d. $100 billion e. $40 billion