Which is the Estimate Costs technique used most frequently in the early stages of a project.

A.
Analogous estimating

B.
Life-cycle costing

C.
Parametric modeling

D.
Bottom up estimating

Explanation:
Analogous estimating : Analogous estimating is also called top-down estimating and uses the actual cost of a previous, similar project as the basis for estimating the cost of the current project.