The humans are destroying nature day by day, ________ of course, will cause severe punishment from it sooner or later.

A．who

B．when

C．on which

D．which

《疫苗流通和预防接种管理条例》规定，接种单位未依照规定建立并保存真实、完整的疫苗接收或者购进记录的，该如何处罚？。