Among the following, the narrow spectrum antibiotic is (a) chloramphenicol (c) ampicillin (b) penicillin G (d) amoxycillin.
Correct option is A) Benzylpenicillin (Penicillin G) is a narrow-spectrum antibiotic used to treat infections caused by susceptible bacteria. It is a natural penicillin antibiotic that is administered intravenously or intramuscularly due to poor oral absorption. Hence, option A is correct.
