Question

when a person receives a vaccine, i on the surface of the dead virus in the vaccine cause an immune response that results in the production of ii, which provide immunity against future exposure to the virus.
the statement above is completed by the information in row
i | antigens, ii | memory cells
i | antibodies, ii | memory cells
i | antigens, ii | suppressor cells
i | antibodies, ii | suppressor cells

Explanation:

Antigens on the surface of dead - or inactivated - viruses in vaccines trigger an immune response. This response leads to the production of memory cells. Memory cells remember the pathogen and provide immunity against future exposure. Antibodies are produced in response to antigens but are not the initial trigger on the virus surface in vaccines. Suppressor cells regulate the immune response, not provide long - term immunity against the virus.

Answer:

i | antigens, ii | memory cells