Go through the below sentence and mark the answer that has an error in it. Choose option 4 as your answer if there is no error.
World's first unmanned vessel (A) named 'Mayflower 400' has been (B) built to navigate across Atlantic.(C) No error (D)
1
World's first unmanned vessel
2
named 'Mayflower 400' has been
3
built to navigate across Atlantic
4
No error