B because nos makes no sense nor does les or me hoped this helped! Buenos Noches
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1. Cual
2. Tú
3. Cómo or Cual not sure
4. Cómo
5. Tú
6. Dónde
7. Qué
8. Cuántos
Los inmigrantes mejoran las ganancias de los trabajadores norteamericanos.( Inmigrants make North American workers get a better profit.) There was barely any mention of Asians, and there was enough evidence to prove the second and last answers incorrect.