Main developed three attachment classifications to correspond with the three infant classifications. She labeled them D,E, and F to match Ainsworth’s A, B, and C. Dismissing adults (D) were hypothesized to correspond to avoidant babies (A); Enmeshed adults (E) to correspond to resistant babies (C); and Secure adults (F for Free) to correspond with secure babies (B). The enmeshed classification was later changed to preoccupied.