Can I have some story/book titles or maybe some story/book plots?

What language device is used in the highlighted text?

Based on the cause-and-effect relationship in this sentence, what is the meaning of the word illuminate? the colors and patterns on the stained glass windows were illuminated as thousands of candles burned during the special church service. a) to melt or change form b) to grow taller or wider c) to become extremely hot d) to light up or make clear

The book the lord of the rings by j r r tolkien, in which the main character must go on a journey to destroys magic ring, is an expample of which plot archetype