Which among the following is not an antibiotic ?

Options

A. a) Penicillin
B. b) Oxytoxin
C. c) Erythromycin
D. d) Tetracycline

Answer

B

Explanation

Antibiotics are the chemical substances produced by microorganisms (bacteria , fungi , etc ) , that can inhibit the growth of other microorganisms , eg Penicillin , erythromycin , tetracycline , ofloxacin but oxytocin is a peptide hormone which is secreted by master gland .