Answer:
B) They would legitimize extremist views
Step-by-step explanation:
He declared in an interview circa 2008 that there had been several approaches to Iran in a more small level with low grade representatives, and that Iran showed no willingless to change their ways and their goals, so he didn´t thikn involving the president would change anything, that said he also stated that :
"I do think there could be a lot of harm caused by negotiating with Iran, because talking to them gives them a certain legitimacy that they aren’t worthy of. "
Basically saying that the president negotiating with Iran could legitimate a movement that is based on extremist views, since they were believed to be creating and growing nuclear weaponery.