Answer:
A
Step-by-step explanation:
The quantitative theory of money states that MV=PT.
M: money supply
V: velocity of circulation (number of times that a dollar changes of holder in a period)
P : price of a typical transaction
T: total number of transactions.
We can also write the equation as MV=PY, because the value of transactions is equal to the GDP (Y).
If M has a constant growth but there are fluctuations in V, then P, Y or both change.