Put it through word check to make sure no words are spelled wrong. Make sure you used proper grammar and have a friend or a parent read it to make sure it makes sense to them.
Answer:
Jose de San Martin's most important achievement was leading the revolutions against Spanish Royalists in Argentina (1812), Chile (1818), and Peru...
Explanation:
Sacramento-nebraska is the non matching one
C, because they are all extending the rights of certain groups
