3. It can be inferred from the passage that the author believes that those in favor of stiffening the restrictions on gene transplant research should logically also (A) encourage experiments with any plasmids except those bearing genes for antibiotic resistance (B) question the addition of anti-infective drugs to livestock feeds (C) resist the use of penicillin and tetracyclines to kill microorganisms (D) agree to the development of meatier livestock through the use of antibiotics (E) favor congressional debate and discussion of all science and health issues