Violation

The primary retention of a Class II gold inlay is achieved by 1. adding an occlusal dovetail. 2. increasing the parallelism of walls. 3. lengthening the axial walls. 4. placing a gingival bevel

(1) (2) (3)

(1) and (3)

(2) and (4)

(4) only

All of the above.

Please describe the matter of abuse