A vaccine is a substance that supports the body to produce antibodies and offer immunity in contradiction of a disease. A live attenuated vaccine comprises a version of the living microbe that has been destabilized because they are still alive this is the closest thing to an actual infection and will habitually lead the body to have a lifelong immunity after only one or two doses. A killed vaccine is created by killing the illness with chemicals, heat or radiation in which these vaccines are harmless but rouse a weaker immune reaction.
Bioprospecting is the search for plant and animal species from which medicinal drugs and other commercially valuable compounds can be obtained.
Based on this I think it could be B.
Hope this helps.
coffee beans is a seed of coffea plant and source for coffee
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