Your PM is chairing an integrate product team (IPT) that is tasked with putting the program's acquisition strategy, and the IPT has determine that your program will require an Analysis of Alternative (AoA). What organization within the Office of the Under Secretary of Defense (OSD) develop AoA study guidance, approve AoA study plans, and evaluates adequacy of AoA for all MDAP's? A) Director of Operation Test and Evaluation (DOT&E); B) Director of cost Assessment and Program Evaluation; C) Under Secretary of Defense for Acquisition and Sustainment (USD (A&S)); D) Chief Management Officer.