In the early-1900s, why did the United States feel that it was important to complete the construction of the Panama Canal AND control the canal?

Responses
A It allowed ships to cross directly between the Atlantic and Pacific Oceans.It allowed ships to cross directly between the Atlantic and Pacific Oceans.
B It would prevent Russia from doing the same thing.It would prevent Russia from doing the same thing.
C It would help spread democracy to smaller nations.It would help spread democracy to smaller nations.
D It allowed the United States to colonize Central and South America.

A: It allowed ships to cross directly between the Atlantic and Pacific Oceans.