I wanna say that it is C. Most of the other obviously do not make sense.
Newspapers are a good source to use when writing this paper, but the best answer would be to brainstorm a topic
This is a compound sentence because it is two independent cluases joined by a conjunction (after). A complex sentence would be one independent clause and one dependent clause joined with a conjunction and a simple sentence is just a sentence with one independent clause.
All parties need to have a positive attitude in order to build that relationship
