Commercial banks' functions are to...............
A. create money, support smoothly payments mechanism, help community savings, store valuable goods, provide other services
B. create money, support smoothly payments mechanism, help community savings, support smoothly international transaction,store valuable goods, provide other services
C. support smoothly payments mechanism, help community savings, support smoothly international transaction,store valuable goods, provide other services
D. support payments mechanism, help community savings, support international transaction,store valuable goods, provide other services