Here's a problem to solve: Below is an advertisement found in a local newspaper. As shiny as diamonds at a fraction of the price! Buy "Simu-Gems" at Cost-Rite Jewelers. This advertisement suggests that Cost-Rite Jewelers' supplier

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

- A: found a less expensive way to mine and process diamonds.
 
- B: manufactured artificial stones that resemble diamonds.
 
- C: reduced the price of diamonds in order to sell more.
 
- D: started providing small diamonds instead of large ones.
 