<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A prospective cohort study was conducted to assess the relationship between LDL and the incidence of heart disease. The patients were selected at random. Results showed a 10-year relative risk RR of 3.0 for people with elevated LDL levels compared to individuals with normal LDL levels. The p-value was 0.04 with a 95 confidence interval of 2.0-4.0. According to the study results, what percent of heart disease in these patients can be attributed to elevated LDL?? A: 25, B: 33, C: 50, D: 67, E: 100,  <response>: This is a prospective cohort study looking at the relationship between LDL exposure and heart disease outcome. The relative risk was 3.0, meaning those with elevated LDL had a 3-fold increased risk of heart disease compared to those with normal LDL. To calculate the attributable risk percent, we can use the formula:Attributable Risk Percent RR - 1 RR x 100Where RR is the relative risk. Plugging in the numbers:3.0 - 1 3.0 x 100 66.7So the attributable risk percent is the percentage of disease in the exposed group elevated LDL that can be attributed to the exposure. D: 67 