The islamic fundamentalist movement of the 1980s was based on which principle? question 9 options: sharia all of the above terrorism jihadism

The best answer is Sharia, or Islamic Law. 

Although Jihadism and Terrorism often have ties to an extreme fundamentalist sect of Islam, and this was also the case in the 1980s. The fundamentalist movement, or Islamic Revival, did not expressly call for terrorism, but virtually always does call for a greater role of Islam, as it existed in the time of Muhammad, in the modern state.