Why does Bryman argue that research methods can be seen as relatively “free-floating” or autonomous?

(A) Because researchers often change their minds about which method to use
(B) Because most qualitative researchers are Hippies who believe in free love
(C) Because there is no longer any meaningful distinction between quantitative and qualitative research
(D) Because there is no inevitable connection between a researcher’s choice of method and their epistemological/ ontological beliefs