Assume that the state of Kansas passes a law requiring all inline skates sold in Kansas to have disc brakes. Assume that there are no federal regulations covering inline skate design. Assume also, that the required disc brakes would make inline skates easier to stop and thus safer, but that they would add considerably to the cost of the skates and require extensive changes in design to meet the Kansas requirements. Which of the following is most likely true? a. Even though there are no federal regulations on the design of inline skates, the Kansas statute would probably be considered a burden on interstate commerce and thus unconstitutional. b. Because the required modification is a better design, the law would be constitutional. c. Because the statute does not conflict with a federal statute or regulation, it could not be found to be unconstitutional. d. If all manufacturers of inline skates stopped selling them in Kansas, there could be no constitutional violation because interstate commerce would not be involved.