Answer:
A. lower profit margin for Product X
Explanation:
The reason why business would shift more production of X than Z is due to the fact that profit margin for Product X is higher than that of Z.
When doing business, the producers care most about the profit (profit = revenue - cost). The higher the profit is, the more the can really earn.
Meanwhile, the market price of each product may only reflect the revenue that the producers earn from a quantity of products, not the profit. In addition, it depends on the cost as well to determine if the higher price is beneficial or not.
And equal opportunity cost between X and Z means that produce one in these products would still benefit the business the same. So it would not affect the shift.
