An investigator proposes to study a marketed product sold to treat high blood pressure in individuals over age 12 using a liquid formulation for children under age 12. the drug sponsor hopes that the information from the research can be used to change the labeling for younger children to be able to use the drug. which of the following is the investigator's most appropriate course of action?

exposure to hazardous carcinogens and toxic substances can cause breathing problems, such as copd and various types of cancer. it also increases the risk of heart attacks and strokes and has serious (but no less unattractive) side effects, such as aging, yellow teeth, a terrible smell and damage to the vocal cords.

c. flammable gases, patient lying in standing water, combustible liquids near the victim