Concept:Collecting deposits from the general public is a unique function of commercial banks, not of central banks.
Explanation:Central banks manage currency, act as banker to the government, and supervise commercial banks.
They do not accept deposits from individuals or ordinary businesses.
Commercial banks, however, primarily collect deposits from the public and provide loans.
Therefore, the function that a central bank cannot perform is collecting deposits from the public.
Answer:B. collection of deposits from the public