He was the president who arranged for the united states to purchase the french canal company and made the canal’s completion a top u. s. priority.

The correct answer is: Theodore Roosevelt.

Explanation:

Theodore Roosevelt was the 26th President of the United States, from 1901 to 1909. Among the many situations that he had to face, was the threat of a naval blockade from the European powers (Britain, Germany and Italy) to Venezuela, in 1902, which was resolved by the United States when Roosevelt´s policies forced the three powers to an arbitration, and which led to a fortification of his strong belief in the role the U.S was called to play, especially in the Americas. Seeing the need for a connection between the Pacific and Atlantic oceans, and establishing the passage of a transatlantic canal either through Panama, or through Nicaragua, Roosevelt supported the rebellion of Panama against Colombia, and acquired the rights to the building and maintenance of the Panama Canal, from the Panama Canal Company and the New Panama Canal Company, in a deal with the newly established Panamanian government.  

b.   jim crow laws were enacted in northern states.