Not to be rude, but I don't think anyone would do the work for you. If they were going to, though, I recommend giving a little more information.
Maybe it infers that earth may not be ready for advanced technology such as aliens
C is the correct answer.
Since commas connects 2 sentences.
I think the answer for 1. is They proclaim that the speaker has callously used people for her own benefit. They imply that the speaker is heartbroken over her behavior.
2. The speaker is appreciative of people who are free thinkers.
