List the facts/events that satisfies Koch postulate in the study of epidemiology of bacteria and parasites?

Four criteria that were established by Robert Koch to identify the causative agent of a particular disease, these include:

the microorganism or other pathogen must be present in all cases of the disease

the pathogen can be isolated from the diseased host and grown in pure culture

the pathogen from the pure culture must cause the disease when inoculated into a healthy, susceptible laboratory animal

the pathogen must be reisolated from the new host and shown to be the same as the originally inoculated pathogen

As originally stated, the four criteria are: (1) The microorganism must be found in diseased but not healthy individuals; (2) The microorganism must be cultured from the diseased individual; (3) Inoculation of a healthy individual with the cultured microorganism must recapitulated the disease; and finally (4)

Answer should be b : ))