Ead the section "New Shoes Changing The Sport." Which selection from the section supports the conclusion that not all runners benefit equally from the Vaporfly's technology? A Research showed the shoes improved the way runners use energy by an average of 4 percent. B Tucker pointed to studies showing that some runners respond to the shoes' technology more effectively. C He said Nike could have been clearer as it developed the Vaporfly. D Orr said that early on, people saw incredible results with the Vaporfly.