Aconclusion that can be drawn from the outcome of flight 93 on september 11,2001,is

This flight was a classical terrorist attack. It was a turning point, and it marked the beginning of the intense global fight against the terrorism. The territories that were controlled by the terrorists were attacked in order to destroy them, and that caused multiple military interventions in multiple countries. Unfortunately, as one terrorist organizations falls, another one emerges, and nowadays the threat of terrorist attacks is bigger than ever.

the answer is prolly b