Choose one sentence that has the same meaning as the root one:

I like Robinson Crusoe. He is the main character in a book by Daniel Defoe.

I like Robinson Crusoe because he is the main character in a book by Daniel Defoe.

I like Robinson Crusoe, who is the main character in a book by Daniel Defoe.

I like Robinson Crusoe and who is the main character in a book by Daniel Defoe.