Answer:
B. The sea and its tides
Explanation:
Robinson Crusoe is a novel written by Daniel Defoe. We follow the story of a man who was shipwrecked on a deserted island. He was trapped there for 28 years with no valid possibilities of sailing away.
Antagonist in a story is a person or a hostile force that stands as opposed to protagonist (the main character), it makes things hard for him and creates a rocky road to the protagonist`s goal, intentionally or unintentionally.
In this novel, the antagonist is the sea and its tides - it was them that caused the shipwreck and disenabled Robinson from getting out of the island and going home.
