If the Technology Associated with Producing Fibre-Optic Cable Continues to Advance

If the technology associated with producing fibre-optic cable continues to advance, over time the cost of producing fibre-optic cable will

A) increase, firms that use the new technology will incur an economic loss, and in the long run some firms will exit the industry.
B) decrease, firms that use the new technology will incur an economic loss, and in the long run some firms will exit the industry.
C) increase, firms that use the new technology will make an economic profit, and in the long run new firms will enter the market.
D) decrease, firms that use the new technology will make an economic profit, and in the long run new firms will enter the market.
E) decrease, firms that do not use the new technology will make an economic profit, and in the long run new firms will enter the market.