<span>1. The joiner nevertheless shows a contrast between coordinate ideas. That word means however, which is used to show that something opposite is going to be said in the following words.
2. The joiner therefore shows a result between coordinate ideas. Something happens, and then you use the word therefore to show the results of such an event. </span>
I beileve your answer is the second choice
3. The author stops using direct address.
Answer:
The Fall of the House of Usher is Poe's classical piece of this type. It presents terrifying atmosphere, the dark plot, and man's psychological terror to reveal the process of disintegration and annihilation of human mind, thus offering readers specific aesthetic perception through psychological shocks.