The correct option is C It consist of all Arab States of the Persian gulf, except for Iraq
The Gulf Cooperation Council (GCC) was established by an agreement concluded on 25 May 1981 in Riyadh, Saudi Arabia among Bahrain, Kuwait, Oman, Qatar, Saudi Arabia and UAE in view of their special relations, geographic proximity, similar political systems based on Islamic beliefs, joint destiny and common objectives. Arabic is the official language of the GCC countries