Change in Capital Structure - Minimum EBIT

Hi there, I am struggling with this question and was wondering if anybody could help please

Company A choses to change its capital structure by increasing debt from vnd 80 bil to Vnd 125 bil. Provided that borrowing interest is 9% and wil remain unchanged. The company currently has 10 mil shares in issue with the current value of Vnd 45k/ share. If change in capital structure leads to an increase in ROE then what is the minimum EBIT expected by the BOD? Ignore income tax. a. 45 bil b. 46.7 bil c. 47 bil d. 47.7 bil THanks for your help Th