Fact 1: Bacteria cause food poisoning. Fact 2: Botulism is food poisoning produced by a bacteria. Given the two facts above, what causes botulism? ?

Available choices:
(A). virus.
(B). sunlight.
(C). Echinoids.
(D). Bacteria.
(E). Pesticides.
(F). Roundworms..
(G). influenza.
(H). parasite.
Answer:
(D).