In the Simple Deposit Expansion Model, an Expansion in Chequable

In the simple deposit expansion model, an expansion in chequable deposits of $1000 when the desired reserve ratio is equal to 10 percent implies that the Bank of Canada ________.

A) sold $1000 in government bonds
B) sold $100 in government bonds
C) purchased $1000 in government bonds
D) purchased $100 in government bonds