The statement that best represents how Harding and Coolidge's presidential policies compare and contrast with each other is:
D. Both were pro-business, but only Harding's presidency is famous for scandals.
Warren G. Harding and Calvin Coolidge were both Republican presidents during the 1920s, and both supported pro-business policies. However, Harding's presidency is often associated with significant scandals, most notably the Teapot Dome scandal, whereas Coolidge's administration was generally seen as more scandal-free and emphasized a more hands-off approach to government and business.