Answer: A increase the total revenue of insulin producers
Explanation:
When the demand for a good or service is inelastic, it means that quantity demanded does not change with respect to price. In other words price can be increased on decreased and the quantity demanded would not change.
In this case, the price of insulin increased by 5%. Quantity demanded will not change for insulin which means that the producers will be making more revenue because the same number of people will still be buying, this time however, they would be buying at a higher price thus binging in higher revenue.