Here's a problem to solve: Which is most like the way a stem supports a flower?

Among the 4 following options, which is the correct answer?

- A: the way water supports a boat crossing a river
 
- B: the way a flagpole supports a flag in the schoolyard
 
- C: the way bookends support books on a shelf
 
- D: the way a belt supports pants on a person's waist
 