Answer:
The correct answer is option B.
Explanation:
An increasing-cost industry is that kind of industry where the cost of production increases as new firms enter the industry. It generally happens as the industry expands, the cost of inputs increases, because the input demand is increasing as well.
An increasing cost industry has an upward sloping long-run supply curve. So when the demand increases, the new demand curve will intersect the upward sloping demand curve at a higher point. This will cause both the product price as well as the output level to increase.