Here's a problem to solve: Which of the following is NOT a description of compounds?

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

- A: They can exist in the form of atoms or molecules.
 
- B: They consist of atoms of two or more elements bonded together.
 
- C: They have properties that are different from their component elements.
 
- D: They can be broken down into elements by chemical means but not physical means.
 