With regard to latin america, herbert hoover
a) relied on "dollar diplomacy" as william h. taft had.
b) returned to military intervention as woodrow wilson had.
c) renounced the monroe doctrine and encouraged western european intervention.
d) repudiated the roosevelt corollary and refused to send in u. s. troops when caribbean nations got into debt problems and political instability.
e) was urged into isolationism by those disillusioned by the league of nations.

hello!

according to the passage the most suitable options are two. the first one is "by leading the aef to victory in several key battles" like the battle of saint- mihiel and the battle of cantigny mentioned in the passage you copied here. the second one is "by the aef and allied forces defeat germany" since the passage says that his army destroy the german resistance in the meuse- argonne offensive. and also, "by insisting that the aef operate as an independent force".

hope this