QUESTION 4 The Kaplan-Meier (KM) curves below show estimates of time to remission (months) for cancer patients assigned to two different drug therapies (group 1 vs. group 2). By reading the graph, which option best describes the point where 50% of the patients have experienced remission in the two groups (median remission)? | Kaplan-Meier survival analysis REMISSION 100- 60- GROUP Survival probability (%) 2 10 15 20 25 30 35 Time a. Median remission in group 1 occurs at about 8 months, where median remission in group 2 occurs at about 24 months. b. Median remission in group 1 occurs at about 24 months, where median remission in group 2 occurs at about 8 months. O c. Median remission in group 1 is equal to median remission in group 2. d. All patients experience remission before the median mark.QUESTION 9 The table below shows the results of observing several Cox Proportional Hazards models, to determine if each variable of interest (age, smoking status, ...., Borg score) was predictive of survival, in a sample of 93 patients with pulmonary fibrosis. Variables HR (95% CI) p-value Age 1.027 (0.987-1.069) 0.1915 Smoking status" Current 0.818 (0.338-1.984) 0.6573 Former 0.959 (0.475-1.936) 0.9069 BMI 0.977 (0.891-1.071) 0.6233 FVC % pred 0.965 (0.948-0.982)