A law firm in the Phoenix area provides "sick care" for employees' children. Sick care can be used when the child is too ill to go to school or its regular care facility. The law firm manager claims the program has cut down on sick days taken by employees to care for sick children. The program is an illustration of which type of social responsibility school?(A) inherence school (B) enlightened self-interest school (C) invisible hand school (D) social responsibility school