Antivenom injection contains preformed antibodies while polio drops that are administered into the … attenuated pathogens (d)…
The correct option is (c) attenuated pathogens.
Oral polio vaccine consists of attenuated pathogens. Attenuated pathogens are living microorganisms or viruses cultured under adverse condition, leading to loss of their virulance. But these organisms have the ability to induce protective immunity. The oral vaccine of polio contains three live polio strains in attenuated forms.