To carry hypothesis tests or to compute confidence intervals for risk and odds rations, we use the natural log of the sample risk or odds ration in place of their actual values. We do because:
A. The sampling distribution of risk and odds rations are approximately normally disributed.
B. The sampling distrubutions of the natural log of risk and odds are approximately nrmally distributed.
C. It increases the power to find significant risk and odds ratios.
D. It reduces the side of the confidence intervals of any given level of significance.