An Instructor Explains That Safety Precautions Must Be Followed Anytime

An instructor explains that safety precautions must be followed anytime oxygen is in use. A student shows a need for additional instruction by saying:

A) "I should eliminate the possibility of static electricity, which could spark a fire."
B) "I should avoid using petroleum-based products such as petroleum jelly on the lips of patients using supplemental oxygen."
C) "I should provide a higher liter flow of oxygen for patients with chronic lung disease."
D) "I should check the electrical devices, such as electric razors, in the room to ensure that there are no frayed wires."