Which of the following statements is true?
A.
Real GDP is a measure of GDP that controls for changes in output, whereas nominal GDP is the value of GDP in constant dollars.
B.
Real GDP is a measure of GDP that controls for changes in prices, whereas nominal GDP is the value of GDP in current dollars.
C.
Nominal GDP is a measure of GDP that controls for changes in prices, whereas real GDP is the value of GDP in current dollars.
D.
