Violation

Tetracycline will cause dentin discolouration when ingested at the age of 1. 6 months in utero. 2. 2 years. 3. 7 years. 4. 14 years.

All of the above.

(2) and (4)

(4) only

(1) (2) (3)

(1) and (3)

Please describe the matter of abuse