How Did James Gadsden Distinguish Himself During Franklin Pierce's Presidency

How did James Gadsden distinguish himself during Franklin Pierce's presidency?

A) He tried to buy much of northwestern Mexico and Baja California from the Mexican government.
B) Gadsden negotiated the purchase of the Hawaiian Islands from their native queen Liliuokalani.
C) He made arrangements to buy Cuba from Spain,but the deal fell through after it leaked to the antiexpansionist press.
D) He bought a small amount of land from Mexico to facilitate a southern transcontinental railroad.