The crude quantity theory is based on each of these assumptions except that

A) if M rises by a certain percentage,P rises by that same percentage.
B) V and Q are constants.
C) MV = PQ.
D) if M rises by a certain percentage,V will rise by that same percentage.

The crude quantity theory of money assumes that the velocity of money (V) and the quantity of goods produced (Q) are constants. It posits that changes in the money supply (M) directly affect the price level (P) in proportion, as expressed in the equation MV = PQ. It does not assume that an increase in M leads to an increase in V; rather, V is considered constant.