A parent told the public health nurse that her 6-year-old son has been taking tetracycline...

(A) Tetracycline should be avoided during tooth development because it interferes with enamel formation and dental pigmentation. (B) Milk interferes with the absorption of tetracyclines. (C) Children older than 9 years or past the tooth development stage may be given tetracycline. (D) Secondary infections of chronic skin disorders may respond to antibiotics such as penicillin or tetracyclines.