All of the following were factors in the failure of the United States to join the League of Nations after the First World War EXCEPT:
(A) fear of further involvement in foreign wars.
(B) personal and political rivalries between President Woodrow Wilson and Senator Henry Cabot Lodge.
(C) President Wilson's illness.
(D) a group of United States senators who opposed American participation on any terms.
(E) the influence of the Soviet Union within the League.