resources needed for the project

A project manager is needs to determine the resources needed for the project.
Select the primary tool from the following choices.
A Activity resource estimating
B Schedule
C Expert advice from functional managers
D Human resource planning

Is activity resource estimating a tool?

admin's picture

Activity Resource Estimation is the answer, Maybe Question is Ambiguous

The question is asking Tool. That is exper judgment.
Answer is C

Its asking for " Tool " .. so the answer is C