The ratio of students who prefer comedic plays to students who prefer romantic plays in the drama club is 2 to 3. If all students in the drama club prefer either comedic or romantic plays, which statement must be true?

Students who prefer romantic plays make up 3/5 of the drama club.
Students who prefer romantic plays make up 2/3 of the drama club.
There are exactly 3 students who prefer comedic plays in the drama club.
There are exactly 5 students in the drama club.