The Three men's lives were saved as they were held above water by the monster which they discover to be a modern submarine, named the Nautilus, as they climb inside they come upon the submarines captain and his crew, his name is Captain Nemo (as i recall).
Answer:
You just need to draw the line through the points
Explanation:
I think it’s subordinate since it can’t stand on its own. Subordinates add more information to the sentence.