What Was the Issue That Provoked an Open Break Between

What was the issue that provoked an open break between Taft and Roosevelt?

A) Taft supported higher tariffs, but lower tariffs had long been one of the primary focuses of Roosevelt's economic policies.
B) Taft reduced the size of the navy, which led Roosevelt to become deeply concerned about the future of national security.
C) Taft made an anti-trust suit against United States Steel Corporation, which was at odds with Roosevelt's business alliances.
D) Taft supported the federal income tax, whereas Roosevelt had long argued it would hurt common people and help corporations.
E) Taft fired Pinchot after he showed opposition to the Taft administrations' opening up protected federal lands to commercial development.