Among lower-paid workers, union members are less likely than nonunion members to be enrolled in lower-end insurance plans imposing stricter limits on medical services and requiring doctors to see more patients, and spend less time with each.
                    
                
                        - 
                Aimposing stricter limits on medical services and requiring doctors to see more patients, and spend
                                    分析该选项
                            
- 
                Bimposing stricter limits on medical services , requiring doctors to see more patients, and spending
                                    分析该选项
                            
- 
                Cthat impose stricter limits on medical services, require doctors to see more patients, and spend
                                    分析该选项
                            
- 
                Dthat impose stricter limits on medical services and require doctors to see more patients, spending
                                    分析该选项
                            
- 
                Ethat impose stricter limits on medical services, requiring doctors to see more patients and spending
                                    分析该选项
                            
显示答案
        正确答案: D