Eisenhower, kennedy, and johnson all approved of the united states backing the south vietnamese in their civil war.
a. true
b. false

It is absolutely true that Eisenhower, Kennedy and Johnson all approved of the United states backing the South Vietnamese in their Civil war. The correct option among all the options given in the question is option "a". although the above mentioned people agreed to supporting the South Vietnamese people in their Civil War, actually it was Truman who started this procedure.