The quantity and type of pollution that entered the river last Thursday ... ...

The quantity and type of pollution that entered the river last Thursday night suggest that the local auto repair shop is responsible. But the penalty for this type of pollution is so severe that, unless stronger evidence is discovered or the perpetrator admits responsibility, we cannot be sufficiently certain of the identity of the polluter to justify imposing the penalty.

Which one of the following principles, if valid, most helps to justify the reasoning in the argument?


(A) The more severe the penalty for an infraction is, the more certain one must be of the guilt of a party before being justified in imposing the penalty on that party.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in PT70 (Oct 2013): Logical Reasoning B