Junjun Co. has debt ratio of .50, total assets turnover of 0.25, and a profit margin of 10%. The president is unhappy with the current return on equity, and he thinks it could be doubled. This could be accomplished (1) by increasing the profit margin to 14% and (2) by increasing debt utilization. Total assets turnover will not change. What new debt ratio along with the 14% profit margin is required to double the return on equity?

a. 0.75b.0.65c.0.70d.0.55