《安全生产法》规定，以下不属于安全管理机构的职责的是( )。

A．保证安全生产投入的落实

B．落实国家有关安全生产的法律法规

C．组织生产经营单位内部各种安全检查活动

D．负责日常安全检查，及时整改各种事故隐患

A certain grocery purchased x pounds of produce for p dollars per pound. If y pounds of the produce had to be discarded due to spoilage and the grocery sold the rest for s dollars per pound, which of the following represents the gross profit on the sale of the produce

A．(x-y)s-xp

B．(x-y)p-ys

C．(s-p)y-xp

D．xp-ys

E．(E) (x-y)(s-p)