Step 1: Identify money's primary roles.
- Facilitator of trade: Acts as a medium of exchange, superseding barter.
- Value benchmark: Serves as a unit of account for quantifying worth.
- Wealth preservation: Functions as a store of value for future consumption.
- Future transaction settlement: Used as a standard for deferred payments.
Step 2: Assess given options.
- (A) Medium of exchange → Accurate.
- (B) Unit of account → Accurate.
- (C) Bartering → Inaccurate; barter occurs in the absence of money.
- (D) Store of value → Accurate.
Step 3: Determine the correct functions.
Valid functions correspond to options (A), (B), and (D).
Final Determination: \[\boxed{(A), (B), (D)}\]