Answer: C) The debater could avoid a personal attack and generalizations about her opponent, sticking instead to the facts.
Explanation: In the given scenario where we can see a political debate, one of the debaters attacks her opponent, by saying that this last one never has said something true, so she uses this argument to imply that what her opponent is saying, isn't true. She must revise her statement by avoiding the personal attack and the generalizations about her opponent, and basing her argument in the facts.