Both the social sciences and the natural sciences employ ________ to help them understand the world around them

When Americans increase their demand for Japanese goods

A) the demand for dollars will rise, and the demand for yen will rise. B) the supply of dollars will rise, and the demand for yen will rise. C) the demand for dollars will fall, and the demand for yen will rise. D) the supply of dollars will fall, and the demand for yen will fall.

A nation's official reserves:

A. compensate for differences in the current and capital and financial accounts. B. consist of all domestic and foreign currency held by a nation's central bank. C. are always zero. D. are always negative.