Here's a problem to solve: Students shake salt into a jar of water, and they shake pepper into a second jar of water. Which statement best compares the two jars?

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

- A: Only the salt and water is a mixture.
 
- B: Only the pepper and water is a solution.
 
- C: Both jars contain solutions.
 
- D: Both jars contain mixtures.
 