Answer:
Complex
Explanation:
There is a dependent clause in the beginning, and after the comma there is no conjunction (F.A.N.B.O.Y.S), and the second part is an independent clause. The complex sentence is 'dependent, independent'. You're welcome.
He acts as if the world is ending.
The correct answer is D - feeling that one is an outsider. Being "marginalized" means being on the margin, far from everybody else, having the feeling that you don't belong anywhere. These people usually feel lonely, rejected, as if they had nobody but themselves in the world.
