How did World War I change Americans attitude toward immigration

Many Americans feared that as immigration increased, jobs and housing would become harder to obtain for a number of reasons: There was high unemployment in America after World War One. New immigrants were used to break strikes and were blamed for the deterioration in wages and working conditions.

Explanation:

Immigration to the United States slowed to a trickle because of the war, down to a low of 110,618 people in 1918, from an average of nearly 1 million. ... Stories of atrocities by German soldiers, both real and exaggerated, fed hostility toward persons of German descent and led many immigrants to hide their heritage.

affirmative action refers to the policies that take gender, race, or ethnicity into account in order to promote equal opportunity.

employers subject to title vii are prohibited from taking race or sex into account in any employment decisions. aa is a penalty for having any job group substantially statistically "underutilized" in any race or either sex. the employer must take steps to eliminate the underutilization, then stop, ending its aa efforts

the answer would be a).