Violation

A Vitamin B2 (Riboflavin) deficiency usually arises in patients 1. who are elderly. 2. with acute infection. 3. consuming a high protein or fat diet. 4. taking systemic antibiotics.

All of the above.

(1) (2) (3)

(1) and (3)

(2) and (4)

(4) only

Please describe the matter of abuse