Which thesis statement is an argument?
A.
Stephen Crane’s “The Open Boat” calls into question man’s sense of self.
B.
Stephen Crane’s “The Open Boat” is a cautionary tale about seafaring.
C.
Stephen Crane’s “The Open Boat” suggests that journalists should not be adventurous.
D.
Stephen Crane’s “The Open Boat” unleashes the many dangers of the sea.