Of these, Only 'C' is accepted by the American military establishment as being true. Which means, I only accept 'c' as being true. Regarding 'A', go listen to the original speech and learn Farsi. That's the good thing now-a-days, a lot of younger people, those with military backgrounds anyway, know Farsi and Arabic. They will know when they are about to be hoodwinked. As touching 'B' the American military establishment has been consistent in saying that weapons and, more importantly, logistical support have been coming into Iraq from Iran. Not from the IRANIAN GOVERNMENT. It is clear that radicalized people in Iran are behind this in my view. In fact they seem keen to want to avoid the mistake they made in Iraq, getting rid of the government, when the people are the problem. And despite whatever you heard about the middle east, the people really are the problem.
Similarly weapons, money and support for the killing of Americans comes in from Syria, Jordan, and believe it or not, even Kuwait. But, by far, the largest supplier of man and material in the struggle against us pig-eating infidels is from our good friends in Saudi Arabia. Fun fact, there are units in Iraq who have yet to catch a foreign fighter who is NOT Saudi.
Did you know we actually trained some of the most effective foreign fighters in Iraq ourselves? When Chechens were blowing up Russians we thought they were freedom fighters. So they got tacit support, not just from us but from the West in general. Ask any man from Marine one eight and he will tell you about the effectiveness of Chechen snipers in Fallujah.
My point is, from MY point of view, which is clouded from being in an enlisted family as opposed to a commissioned one I'm sure, Iran is only a small part of the problem.