Before being able to effectively determine human resource requirements, demand for the company$$s goods or services musts be forecasted. The forecast is translated into the quantity of people necessary to meet this demand. One approach to this forecasting is to start with the lowest level in the organization and then cumulatively work up the organizational levels to obtain an aggregate forecast of employees needed. This approach is defined as:

Select one:

a$.$

aggregate planning.

b$.$

succession planning.

c$.$

bottom$-$up forecasting.

d$.$

zero$-$based forecasting.