As president, what was George W. Bush's main accomplishment regarding immigration? He proposed and signed into law a guest worker program.
He succeeded in ending illegal immigration into the United States.
O He authorized a 700-mile-long fence along the US border with Mexico.
O He changed US immigration policy and allowed illegal immigrants to stay.

Option: He proposed and signed into law a guest worker program.

Explanation:                                  

President George W. Bush encouraged admitting illegal immigrants so that they could work under the guest-worker program. He explained that the proposed would help prevent the exploitation of immigrants, human smuggling, and protect wages. According to Bush, such programs needed to suppress the national security threat in the United States. A guest-worker program allows foreign workers to temporary work in a different country. Guest workers work in fields of agriculture, industrial, and domestic labour.

some american cities felt workers were being oppressed by business monopolies