Answer:The correct answer is A) increase the total revenue of insulin producers.
If the demand for insulin is price inelastic, it means that consumers are relatively unresponsive to changes in the price of insulin. Therefore, a 5 percent increase in the price of insulin will not cause a significant decrease in the quantity demanded of insulin. As a result, the total revenue of insulin producers will increase since they can sell the same quantity of insulin at a higher price.
Explanation: If the demand for insulin were price elastic, a 5 percent increase in the price of insulin would cause a larger decrease in the quantity demanded of insulin. This would result in a decrease in the total revenue of insulin producers.
Option C is incorrect because a price increase is not likely to decrease the total spending on insulin by consumers, as insulin is a necessary medication for people with diabetes. Option D is incorrect because a change in price does not affect the elasticity of demand. Elasticity of demand is determined by other factors, such as the availability of substitutes for the product.