Answer:
The question is not complete.
However, this statement is a quote by Leonardo da Vinci. He was an Italian genius of the Renaissance period who is famous mostly for his paintings. This quote is about marriage.
In "The Cask of Amontillado", Fortunato is tricked by the narrator into going down into the passages underneath the narrator's home to test the quality of a cask of Amontillado (wine). Along the way, the narrator gets Fortunato so drunk that when they reach their destination, he is too unaware to defend himself. The narrator had prepared ahead of time and Fortunato finds himself chained to the wall in a passageway, and there he must stay as he watches the narrator pick up mortar and bricks that were placed there ahead of time and slowly build a wall in front of Fortunato. When the wall is finished, he is left down in the new room to die.
I'd say beautiful is too general and should be replaced.
The sentence B contains an error. It should be: The walls or the ceiling is going to be painted beige. The rule is that when there is an "or" in the sentence, the verb is directed by the noun closer to it.
The answer is (A) - to build ethos by showing he understands the other side