Based on your reading of the following, choose the best answer.
recently president obama asked congress to authorize the use of military force against isil (islamic state in iraq and the levant), a new terrorist threat that has been responsible for, among other things, the killing of innocent civilians of various nationalities, including americans. the new authorization would have a sunset provision, which means it would expire after three years. why did the president ask for permission to fight isil?

under the war powers act, the president must get the approval of congress to fight an extended conflict.
the authorization to use force act does not allow the president to fight terrorists without congressional approval.
the president needs congressional approval to fight a war against terrorists who are not linked to al qaeda.
the war powers in article ii of the constitution do not give the president authority to extend a conflict without congressional approval.