Which estimating technique decomposes the work into lower, more detailed pieces, preferably the lowest level of wbs work elements, for which estimates are prepared and then aggregates them into a total quantity for the project?

a. grass-roots estimating
b. piece-meal pricing
c. bottom-up estimating
d. decomposition estimating

(C) Bottom-up estimating

Explanation:

The bottom-up estimating is one of technique used by the manager or lead of the project department in the project management process.

By using this technique the manager makes an estimated process for assigning the different types of task in project management and it also divide the task into the different groups so that they work done more efficiently and accurately.

According to the given question, the bottom-up estimating technique are used for decomposes the work into the detailed format.  

Therefore, Option (C) is correct.

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