As xenophobia reached new highs right before the start of American involvement in World War I, the Immigration Act of 1917 halted immigration from most Asian countries into the United States, formally the exclusion was ended by the McCarran-Walter Act in 1954.
A. States, formally the exclusion was ended by
B. States, formally ending the exclusion by
C. States, the exclusion formally ended by
D. States by ending the exclusion formally using
E. States and the exclusion was formally being ended by
A. States, formally the exclusion was ended by
B. States, formally ending the exclusion by
C. States, the exclusion formally ended by
D. States by ending the exclusion formally using
E. States and the exclusion was formally being ended by