Homeowner Representative: Statistics show that burglars often target houses that appear unoccupied. Therefore, when homeowners are away from their homes for several days, we recommend that they leave lights on, to give the impression that the house is occupied.

Crime Expert: The same lights continuously on all night long with no change give a potential burglar a clear signal that the house is unoccupied.

The Crime Expert uses which of the following techniques in responding to the Homeowner Representative?

A:calling into question an unstated assumption

B:pointing out an undesired effect of a recommendation

C:presenting new evidence that calls the conclusion into question

D:explaining that a reputed effect is actually a cause

E:demonstrating that the conclusion is true, but not for the reasons cited