Answer: B. something that goes before something else
A prelude is something that occurs before something else. In music, it serves as the introductory piece of a song. It provides introductory lines and tunes before the main part of the song is sung. It is the introductory part of something big, some kind of a glimpse of the real big thing. Here are some example of sentences that use the word prelude
The prelude of the song is very dramatic.
All the hardships are prelude to something beautiful.
