${?}_{{?}_{{?}_{?}}{?}_{{?}_{?}}{?}_{{?}_{?}}{?}_{{?}_{?}}{?}_r\text{e}\text{q}\text{u}\text{i}\text{r}\text{e}\text{s}\text{t}\text{h}\text{a}\text{t}\text{e}\text{a}\text{c}\text{h}\text{d}\text{i}\text{s}\text{c}\text{r}\text{e}\text{t}\text{i}\text{o}\text{n}\text{a}\text{r}\text{y}\text{e}\text{x}\text{p}\text{e}\text{n}\text{d}\text{i}\text{t}\text{u}\text{r}\text{e}be\text{j}\text{u}\text{s}\text{t}\text{i}\text{f}\text{i}\text{e}\text{d}\text{.}}$

Question $8$Select one:

$a.$

Rolling budgeting

$b.$

Zero$-$based budgeting

$c.$

Activity$-$based budgeting

$d.$

Incremental budgeting