Interferons function to make cells resistant to viral infection. Therefore the correct answer to this statement is option D which is resistant to viral infection.
Interferons are distributed as cytokines, small proteins that are involved in intercellular signalling. Interferon is buried by cells in response to stimulation by a contagion or other foreign substance, but it doesn't directly inhibit the contagion’s addition. Rather, it stimulates the infected cells and those near to produce proteins that help the contagion from replicating within them. The further product of the contagion is thereby inhibited and the infection is stemmed. Interferons also have immunoregulatory functions that inhibit B- lymphocyte( B- cell) activation, enhance T- lymphocyte( T- cell) exertion, and increase the cellular- destruction capability of natural killer cells.
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