Answer:
I) New firms will enter the market, III)In the long run, all firms will be producing at their efficient scale.
Step-by-step explanation:
In Microeconomics, this has already happened before. In most recent years, we have seen this For Flat Screen TVs and Smartphones. This is dynamic because the demand may or may not keep on increasing.
In addition to this, another important variable is the supply. The Cost curve is identical to both of them but this is also dynamical. But all of the firms will work harder and harder to lower the Cost curve, so they'll become more efficient.
Finally, in the long run the product retail price will inevitably fall.