The correct answer is gloomy mood.
You can see that Romeo is running away from light, drawing his curtains in order to hide it away completely. He dislikes light and day in general because it means that he cannot see Juliet during the day - they used to meet only during the nightfall, which is why he despises light.
It shows the love his dad has for him and his trust in his son.
C. Because and effect has to have an event in order for an outcome. Problems solution has to have an occurring problem to have a solution to the problem