Define money. Explain how money functions as a standard of deferred payments?

Imagine that an economy has the following monetary aggregates at the end of 31-12-2023 :

On 01-01-2024, the following transactions were executed :

(i) Encashment of an FDR worth Tk. 1,00,000 of that Sanchayapatra worth Tk. 50,000 was purchased from BB and rest of the Tk. 50,000 was deposited in a current account.
(ii) Withdrawl of Tk. 15,000 from a savings account and kept that in cash.
(iii) Cash out transaction of Tk. 20,000 with an MFS agent. [MFS maintains a trust and settlement account with a scheduled bank.] Calculate COB, $M_1$ and $M_2$ monetary aggregates at the end of 01-01-2024.