SAT World History Practice Question

Which of these does NOT describe one of the reasons Mexico declined an alliance with Germany during World War I?

1. A.British blockades would prevent armament shipments to Mexico.
2. B.Americans in former Mexican territories would refuse to assimilate.
3. C.Mexican ships felt too threatened by German U-boats.
4. D.Attacking the United States would endanger South American alliances.
5. E.The United States would be too powerful an enemy for Mexico.