Which of the Following Is the Most Appropriate Safety Precaution

Which of the following is the most appropriate safety precaution for storing solutions in containers?

A) Store containers in cabinets that are 5 feet above the floor.
B) Apply a red label on each container that specifies the contents and date for reordering.
C) Label each container to specify the contents and the expiration date.
D) Replace caps tightly and store in the dark underneath a sink.