What Does the Term "Opportunity Maintenance" Focus On

What does the term "opportunity maintenance" focus on?

A) The difficulty we have in maintaining those opportunities that we are born into
B) The difference between being given an opportunity and being born into privilege
C) The ways that opportunities can impact our ability to live the kind of lives that we want to live
D) The difficulty we have in creating opportunities for people who want to live comfortable lives
E) The ways that opportunities can impact our ability to have adequate educational systems