Which statement most clearly links the evidence & conclusion for an argument about the socially damaging effects of social networks

a.) unless social networking site give people a false sense of connection with strangers, their relationships are hindered

b.) social networking sites give people a false sense of connection with strangers while actually hindering their real relationships

c.) social networking five give people a false sense of connection with strangers but rarely hinder their real relationships

d.) if only social networking sites would give people a false sense of connection with strangers then their real relationships would actually be hindered