It would have forced him to seek Congress's approval for US involvement.
Building canals through it
There were a number of predecessor agencies to INS between 1891 and 1933. The Immigration and Naturalization Service (INS) was formed in 1933 by a merger of the Bureau of Immigration and the Bureau of Naturalization. Both those Bureaus, as well as the newly created INS, were controlled by the Department of Labor.
Answer:
B. British colonies .that is the answer