What was the name of the organization responsible for the wave of anti-western terrorism in the 1990s?
a. the taliban
b. al-qaeda
c. the mujahidin
d. al jazeera

Osama bin laden and his organization al-qaeda was the middle east suspect of the 9-11 attacks on america and global terrorism elsewhere, al qaeda was the main organization reposnisble for that in late 20th cnetury and in the begining of 21st it was the biggest terrorist group in the world