(mc)which of the following ensured construction of the panama canal?

a) u. s. foreign aid payments to panama

b) theodore rooseveltís big stick diplomacy

c) u. s. victory in the spanish-american war

d) u. s. contracts with a french canal-building company

The correct answer is B. Theodore Roosevelt's big stick diplomacy ensured the construction of the Panama Canal.

Explanation:

The Big Stick Diplomacy was Theodore Roosevelt's foreign policy with reference to the use of the United States Navy in the Atlantic and Pacific Oceans.

Applied to politics, this meant that politicians with a "big stick" - in Roosevelt's case, the Navy - could implement their policies without being dictatorial: the careful establishment of diplomatic relations and the assertion of good intentions are combined with a powerful military apparatus and one high economic power paired, which makes it difficult to refuse or hostile reactions to the diplomatic offer in a subtle way.  

Roosevelt's “big stick diplomacy” can be seen as an extension of the Monroe doctrine. In 1823, while James Monroe called on European nations not to intervene in America, Roosevelt basically stated that the United States had the right to interfere in other nations' affairs in the Americas to prevent other nations from moving there intervene.

the answer should be monarchy