Suppose Mrs Wong withdraws HK$300 000 from her savings deposit with a commercial bank. She converts HK$200 000 of the above amount into Renminbi (人民幣) and deposits it into a Renminbi savings deposit with the same bank. She keeps the remaining $100 000 at home. The immediate effect of the above events is:
A. Hong Kong dollar money supply M1 would increase by $100 000.
B. Hong Kong dollar money supply M2 would decrease by $300 000.
C. Hong Kong dollar money supply M1 would remain unchanged.
D. Hong Kong dollar money supply M3 would increase by $100 000.