People love the  convenience of bottled water, but if they ________ the problem it causes, they ________ try carrying water in a reusable steel container instead of plastic.

A．realized; will

B．had realized; will

C．realized; would

D．have realized; would

工作间断时，工作班人员应从工作现场撤出，所有安全措施（），工作票仍由（ ）执存，间断后继续工作，无需通过（）。