The correct answer is 3. Internet Authority Association (IAA), because it is not a real style of citation. Others are existent and commonly used whereas IAA is not real.
Confused maybe ? Because he scratch his head
Can we see the paragraph?
Answer:Information being disguarded
Explanation: to many people the info has to go through
Healthcare insurance is an insurance covering some or all of the risks of a person when surrounding any expenses they may need medically.