please need help witt thse two questions

ons Under the Immigration Act, specialty temporary work visas are not available for O a. persons with "extraordinary ability" in the sciences, arts, or business. b. a company's managers or executives, or investors or entrepreneurs. O c. foreign workers whose hiring will adversely affect domestic workers. O d. workers performing agricultural work of a "seasonal nature." Because collective bargaining over certain subjects is considered mandatory, a party's refusal to bargain over these subjects is an unfair labor practice. True b. False