PMP Question 6

John is the project manager of a project that is in an early phase. He needs to estimate costs but finds that he has a limited amount of detailed information about the project. Which of the following estimation techniques would be least suited to his requirements?

A. Top-down Estimating
B. Bottom-up Estimating
C. Analogous Estimating
D. Budgetary Estimating

B. Bottom-up Estimating