The 1853 Gadsden Purchase a. was made with England. b. temporarily calmed the rivalry between North and South. c. fulfilled the treaty ending the Mexican War. d. advanced the cause of a southern route for the transcontinental railroad. e. cost the United States government $25 million.

Option: d. advanced the cause of a southern route for the transcontinental railroad.

Explanation:

In 1853, James Gadsden bought a strip of land from Mexican for $10 million. The Gadsden Purchase was a treaty in which the United States got some land from Mexico present Arizona and New Mexico.  The purpose of this land was to build a railroad to California called the southern transcontinental railroad.