Because Defense Contractors Must Bid Competitively for Contracts and Because

 Because defense contractors must bid competitively for contracts and because the military must have its annual budget approved by Congress,there is a tendency to 

A)  delay the acquisition of costly new hardware. 
B)  overestimate costs and acquire new hardware as quickly as possible. 
C)  pad the contracts with various nonessential items. 
D)  underestimate the probable costs. 
E)  All of these are correct.