Our conclusion is "The publicity campaign has therefore been successful, in that it has inspired more victims of workplace harassment to pursue their complaints."
We could weaken this if we could prove one of the following:
- The publicity campaign was not the reason for the increase in complaints.
- It has inspired less victims to pursue their complaints.
(A) Racial harassment can occur at work, which would supportthe conclusion.
(B) Irrelevant information. The campaign's goal was to increase the number of complaints. The attorney's office could still claim that the campaign was successful, and therefore this does not weaken the argument.
(C) This implies that victims who would not have come in previously (due to their ignorance of the legal definition of harassment) will now begin to file complaints. This can be considered a victory for the attorney's office - and therefore strengthen the argument.
(E) This adds new, but irrelevant, information. The reason behind the campaign isn't being discussed, this simply widens the scope.
Answer (D): The easiest way to reach this conclusion is to rule out the other 4 choices. While this isn't an ideal "weakening", it is the most likely to weaken the argument. What this statement suggests is that while there may be an increase in overall claims, it may not lead to an increase in claims made by actual
victims. Rather, it may increase false claims, while leaving the number of victim claims the same, or lower.
Note: I had originally chosen (C) as my answer. See reasoning in quote (by optimusprime) below. I have changed my response to reflect the solution, and to ensure that no one is led astray by my initial response.