What Impact Did the American System of Interchangeable Parts Have

What impact did the American system of interchangeable parts have on American consumers?

A) High-quality, mass-produced goods were available for American consumers sooner than in any European country.
B) Although the quality of goods improved, prices remained too high for common people to afford the new products.
C) There was very little impact, as few consumer products were made with the new process.
D) Cheap and unreliable factory-made goods were only sold to the poor, as most Americans continued to prefer handmade artisan products.