What Is the Goal of the Domestic Terrorists with Ties

What is the goal of the domestic terrorists with ties to the Middle East targeting Western Civilians?

A) The terrorists want to force people to convert to their radical form of Islam or face the penalty of death.
B) Such terrorists usually do not have static goals; they frequently change due to the frenzied mind of the terrorist.
C) They seek to increase pressure on the Western governments, including the United States, to withdraw completely from the Middle East and other Islamic regions.
D) They want to enforce Sharia law on Western Civilizations and take the law into their own hands in a sick form of vigilantism.