Name the parts of the implant assembly
(A) 1 - fixture, 2 –  abutment, 3 - abutment screw, 4 - crown (B) 1 - crown, 2 – abutment screw, 3 - abutment. 4 - fixture (C) 1 - crown, 2 - healing cap, 3 - abutment. 4 - root form  implant (D) 1 - crown, 2 - healing cap, 3 - cover screw, 4 - fixture
(B) None