Collins (1979) "credentials building" theory focuses on all of the major proponents listed below except for which: Question 7 options: a) a set of credentials is required to provide access to certain desired occupations. b) people earn credentials through the educational process which help them compete for economic success. c) over time, educational credentials decline in value leading to credential inflation. d) credential inflation in education means the same amount of education no longer "purchases" what it once did in the past and one must acquire more of it to keep up in the struggle for economic success