To relax in the first sentence
The correct answer is B.
When Pi tells the second, more brutal account of what happened, the reader understands how important storytelling is to Pi and how changing the events into a story helped him survive. Furthermore, we can see how Pi had a will to live even in the face of certain death.
I believe C would be correct
An independent clause and a dependent clause.
An independent clause is a clause that can stand alone as a sentence (i.e., it expresses a complete thought). However, a dependent clause (or subordinate clause) is one that cannot stand alone as a complete sentence because it does not express a complete thought. Cause it is not a complete thought, it is dependent on being attached to an independent clause to form a sentence. The link between a dependent clause and an independent clause will often be a subordinating conjunction or a relative pronoun.
From...
pretty sure, that's the answer choice.