Violation

Retention of a gold inlay is improved by 1. addition of an occlusal dovetail. 2. increasing the parallelism of walls. 3. lengthening the axial walls. 4. placing a gingival bevel.

(2) and (4)

(1) (2) (3)

(1) and (3)

All of the above.

(4) only

Please describe the matter of abuse