The unit proposed three schemes A, B and C for energy conservation and emission reduction  Among them, all employees who drive to work choose scheme C, all employees who take the subway to work choose scheme B, none of the employees who take the bus to work choose scheme C, none of the employees who take the subway have a driver's license, and Mr
Wang doesn't have a driver's license when he takes the bus to work
Employees who go to work by bus may have chosen scheme A.