Can you explain to me how you would solve this question please

1. Suppose that the demand for real money balances is:

L(i,Y) = i^-0.5Y^1.5

If real GDP goes from $100 billion to $110 billion then the demand for real balances:

A) Increases by 15%

B) Decreases by 15%

C) Increases by 1.5%

D) Decreases by 15%