According to the passage, Kinsey's work can best be characterised as ______.

A．disapprove the approach of social standing as regards the assimilation
B．point out that assimilation has not been a benign process for
Puerto Ricans
C．defend the position that emphasizes the preservation of national culture
D．indicate deficiencies in two schools of thought on the assimilation issue

A．view the assimilation process as benign
B．resist cultural integration
C．describe the process of assimilation in detail
D．support Puerto Rico's commonwealth status