I believe it’s A
Because authors write to show a purpose of something. Not for their ego.
Answer:
A. It makes it clear that Twain recognizes the value of what Bixby taught him.
Explanation:
It is obvious that Twain recognizes the lesson from Bixby, when he says, "It was a good enough lesson, but learned the hard way." This means he obviously learned his lesson.
Answer:
I begged him not to drive too fast.
A subordinate clause is the one which cannot exist outside of the main, full, complete clause, it cannot exist on its own.
So, the subordinate clause in this sentence is 'that ran between two commercial buildings near the downtown area'.
I can only think of writing, emailing, or sign language.