In Some Settings, in the Past and the Present, Mexican

In some settings, in the past and the present, Mexican Americans have been able to fight discrimination better than African Americans because:

A) the white discrimination faced by Mexican Americans has often been more informal.
B) for these immigrants and their descendants, home-country ties have generally not been destroyed by centuries of oppression, as they have been for most African Americans.
C) from the 1850s to the 1920s, people of Mexican descent on both sides of the U.S.-Mexico border had a history of armed struggles against oppressive whites, struggles that inspired later generations to openly fight anti-Mexican discrimination.
D) All the above