Refer to the following hypothetical case.
The currency of Country T, T-Dollar, has depreciated by 40 percent from the beginning of 2018 after the US announced a series of trade sanctions against Country T. As a result, some shops in Country T quoted prices in US Dollar instead of T-Dollar. Shops in black markets refused to accept T-Dollar. Some citizens bought foreign currencies to safe guard their assets.
Which functions of money of the T-Dollar were weakened?
(1) medium of exchange
(2) unit of account
(3) store of value
A. (1) and (2) only
B. (1) and (3) only
C. (2) and (3) only
D. (1), (2) and (3)