The 'Minamata Bay' example in the first paragraph proved that ______.
A.
if mankind do something harmful to the environment, vice versa, the indeed victims are themselves
B.
a local industry which had released mercury into Minamata Bay was the real murderer
C.
how this highly toxic element stored up in the bodies of local fish and eventually harmful to the bodies of people who consumed the fish
D.
the theory of pollution