Medical researchers investigated the association between the risk of fatality from lung cancer and risk factors associated with asbestos work and smoking. In the study, participants were surveyed about their exposure to asbestos and their smoking habits. Selected data from the research is summarized in the table below. Risk factors Relative risk of fatality from lung cancer Non-asbestos worker, non-smoker Asbestos worker, non-smoker Identify the dependent variable in the experiment. Choose 1 answer: Choose 1 answer: (Choice A) the number of workers who worked with asbestos A the number of workers who worked with asbestos (Choice B) relative risk of fatality from lung cancer B relative risk of fatality from lung cancer (Choice C) increased relative risk C increased relative risk (Choice D) participants D participants