Answer:
The correct answer is C
Explanation:
The market supply is the aggregate quantity of the service or the good, which all the producers or manufactures are willing to offer or provide at the prevailing set of the prices during a particular time period.
In short, it is the sum or total of all the individual producer supplies. And in the long term, it states that it will be for a longer time or for a long time period. So, in the long term, the market supply would be upward sloping when the production cost increases when the new firms will enter the market.