What Does the Term "Escalation of Commitment" Mean

What does the term "escalation of commitment" mean?

A) As a project proceeds toward successful completion,managers make an increased commitment to doing a good job.
B) The actions that managers take as they try to achieve outcomes they desire
C) As a project proceeds,managers become increasingly committed to it,even if there is evidence that it is not working out as planned.
D) It refers to how much a manager is willing to gamble when making decisions.
E) None of these