Right choice is (a) peroxidase
To explain I would say: Polymerization of phenols is catalyzed by peroxidase enzyme which produces a higher molecular weight product to dissolve the products initially formed. Penicillinase is used in the detection of penicillin. Lysozyme acts as antibiotic and helps in bacterial cell wall hydrolysis. Ribonucleases have antiviral activity and helps in RNA hydrolysis.