From which country did the USA purchase Alaska to make it the 49th federating state?

Answer: Option C

The looming U.S. Civil War delayed the sale, but after the war, Secretary of State William Seward quickly took up a renewed Russian offer and on March 30, 1867, agreed to a proposal from Russian Minister in Washington, Edouard de Stoeckl, to purchase Alaska for $7.2 million. Alaska became a state on January 3, 1959.