How is the building of the Panama Canal a result of the Roosevelt Corollary?

The Canal was a geopolitical strategy to make the United States the most powerful nation on earth. Also, the economic impact was massive.

To preclude European intervention, in December the Roosevelt Corollary asserted a right of the United States to intervene in order to "stabilize" the economic affairs of small states in the Caribbean and Central America if they were unable to pay their international debts.

Explanation:

This left a number of other countries which did not take military action, including the United States, with no recourse. The U.S. disagreed with the outcome in principle, and feared it would encourage future European intervention to gain such advantage.[1] To preclude European intervention, in December the Roosevelt Corollary asserted a right of the United States to intervene in order to "stabilize" the economic affairs of small states in the Caribbean and Central America if they were unable to pay their international debts.

hopes this helps)

I think the correct answer from the choices listed above is the second option. The invention of the cotton gin in 1793 affect the use of slave labor in the south because although the cotton gin did not alter the tasks performed by enslaved workers, the number of workers sharply increased. Hope this answers the question.