A situation where budgeted revenues are intentionally under-estimated or budgeted costs are intentionally over-estimated is known as:
A. Participatory budget
B. Surplus budget
C. Budget slack
D. Deficit budget
E. Imposed budget

C. Budget slack

Explanation:
Budget slack occurs when managers intentionally adjust budget estimates to make targets easier to achieve. This often involves underestimating revenue projections or overestimating cost forecasts to ensure that the budget appears to be met or exceeded.