President Johnson's Reason for Expanding American Involvement in the Vietnam

President Johnson's reason for expanding American involvement in the Vietnam war included all of the following, except

A) Communism must be contained in Southeast Asia or it might spread to Hawaii or other areas vital to the U.S.
B) failure to stop Communism would only repeat the appeasement policies of the 1930s.
C) Johnson was unwilling to preside over the first war lost by the U.S.
D) Johnson learned that the Soviets had large numbers of troops in North Vietnam.