The story reads well up through sentence 5, but things get a bit confusing with sentence 6. What makes Renee blush? Is it really in response to her ringing the doorbell? Sentence 7, the answering of the door, should naturally follow sentence 5, the ringing of the bell. So where, then, should sentence 6 go? We learn in sentence 8 that Renee is the only person wearing a costume. If you consider what it is that makes Renee blush, it stands to reason that sentence 6 should follow sentence 8. Thus, the best answer here is B.
Piety is not one of the seven deadly sins
The answer to your question would be that the statement that describes best sentence 2 is the the one that says that the example is a compound sentence. That is the correct option is the last one.
A compound sentence joins two or more independent clauses with a coordinator such as for, and, or but, or a semicolon.
1) The right-handed twin always did the right thing, (clause 1)
2) and the left-handed twin always did everything backward. (clause 2)
I believe the answer is the last one.
