Here's a problem to solve: A solution of water and a nontoxic compound is produced in science class. What should be done with the solution when the demonstration is complete?

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

- A: It should be poured down a drain.
 
- B: It should be poured into a recycling bin.
 
- C: It should be poured into a waste container.
 
- D: It should be placed in a hazardous materials disposal container.
 