Which of the following defines grass roots budgeting the most?

Select one:

The type of budgeting where only the bottom-level management employees are involved in taking budgetary decisions.

The type of budgeting where budgetary decisions are made by top-management.

The type of budgeting where the top-level managers share the responsibility of taking budgetary decisions with the lower- and middle-level managers.

The type of budgeting where external consultants are responsible