Concept:A reserve expenditure warrant is the official authority used by the Minister of Finance to release funds that were earlier withheld or reserved.
Explanation:When the original budget is approved, the Minister of Finance may withhold some funds from spending to maintain financial control.
These withheld funds are placed in reserve.
Such reserved amounts cannot be spent until the Minister later issues a release authority.
That release authority is the reserve expenditure warrant.
The warrant is sent to the Accountant-General and the officer in charge of expenditure.
Other options, such as a supplementary general warrant, are used for funds coming from a supplementary budget and not for releasing earlier withheld money.
Answer:A. Reserve expenditure warrant