How Did the New Deal Lead to a Greater Number

How did the New Deal lead to a greater number of Mexican immigrants applying for U.S. citizenship?

A) Only citizens and aliens who had begun the naturalization process were eligible for public works jobs in the waning years of the Depression.
B) Mexican aliens who worked on farms could benefit from the Social Security Act only if they became citizens of the United States.
C) Citizenship protected Mexican aliens from layoffs in the jobs they currently held.
D) Mexican alien laborers feared placement in detention camps so that unemployed whites could take their jobs.