Question

at the end of world war i, president wilson offended members of the us senate by
traveling to europe.
opposing the league of nations.
opposing the views of henry cabot lodge.
excluding them from the peace process.

Explanation:

President Wilson traveled to Europe to negotiate the Treaty of Versailles without including any U.S. Senate members in the peace delegation. This exclusion of the Senate, which holds the constitutional power to ratify treaties, angered its members, particularly opponents like Henry Cabot Lodge. The other options are incorrect: Wilson supported the League of Nations, his travel itself did not offend the Senate, and opposing Lodge was a result of the initial exclusion, not the cause of the offense.

Answer:

excluding them from the peace process.