Answer: Option (B) is correct.
Explanation:
Given that,
Initially:
Money supply = $1 trillion
Velocity = 5
Price level = 1
Real GDP = $5 trillion
If money supply increases to $2 trillion
Velocity of money = [tex]\frac{Price \times GDP}{Money\ Supply}[/tex]
Velocity of money = [tex]\frac{1 \times 5}{2}[/tex]
= 2.5
Therefore, an increase in the money supply to $2 trillion causes velocity to fall to 2.5.