The correct answer is D.
Vendor bid analysis (choice A) and analogous estimating (choice B) are tools for Estimate Costs. Earned value management (choice C) is a part of performance measurement analysis in Control Costs. By the process of elimination, Estimate Activity Resources is the correct response. It is part of resource management.
Pass PMP in the First Attempt : PMP Strategy
Revise Cost Management Concepts: Project Cost Management
Quiz:
20 Questions Challenge
50 Questions Challenge