Here's a problem to solve: Jake and Molly each have a few different objects. They want to see which objects can float. How can they best compare the results of their investigations with each other?

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

- A: Drop each object in different liquids.
 
- B: Record in a table how each object behaves.
 
- C: Measure the length and mass of each object.
 
- D: Test the objects in groups from smallest to largest.
 