Prior to the 2004 Republican Convention in New York, Undercover

Prior to the 2004 Republican convention in New York, undercover officers infiltrated activist groups that they believed might cause problems during the convention. Officers attended meetings, made friends, signed petitions, and then reported on the groups' activities to supervisors. In order to support such a plan from a utilitarian viewpoint, all of the following must be true, except:

A) the process of undercover intelligence gathering must be a plausible way to achieve the desired outcome.
B) there must be no better alternative to achieve the goal of collecting the intelligence.
C) the gathering of this intelligence must be more important to society than the privacy of the people in the targeted groups.
D) the general community must be consulted and indicate its approval.