In Order for an Overt Act to Be Labeled Aggression,three

In order for an overt act to be labeled aggression,three of the following conditions must be present.Which condition or item does not belong?

A) Any act involving unusual effort and energy expenditure that results in physical harm to an opponent.
B) Aggression must be against a living target.
C) Intent to harm must be evident.
D) Reasonable expectation that aggression will be successful.