The answer is correct,the first time i went through the question,i chose B before i saw your comment.
T&M pays the seller far more than the buyer,as period of the contract increases the seller gets more.
Cost plus fixed fee (CPFF), Cost plus award fee (CPAF) do serve as a good relief/comfortable to the buyer just as it is with FP.
Moderators: Yolanda Mabutas, Ahmed Amin, Scott Gillard, Mary Kathrine Padua, ERIC BARTLETT, Gail Freedman, Kevin Nason, Steven Mudrinich, PMP, Mark Wuenscher, PMP, John Wolverton, Tracy Shagnea, PMP, Jada Garrett
This interview with Simona Fallavollita (LinkedIn Profile) was recorded at the magnificient Project Management Institute (PMI)® Global Conference 2017 in Chicago, Illinois. We discuss the how, what, why and when of the changes that are coming to the PMP exam.