What Factors Have Prevented Hispanics from Translating Their Numbers into Comparable

What factors have prevented Hispanics from translating their numbers into comparable political clout?

A) political differences among them,and the fact that many are not citizens or registered to vote
B) programs like "Operation Wetback" and the "show me your papers" provision in Arizona
C) the facts that many of them are not citizens or registered to vote,and many are illiterate
D) their recent arrival in the United States,and the fact that many have not learned to speak English