randle inc is contructing a building contruction began on jan 1 and was completed on dec 3 1 expedentures were 6 4 0 0 0 0 0 on march 1 , 5 2 8 0 0 0 0 on june 1 and 8 0 0 0 0 0 0 on dec 3 1 . rande company borrowed 3 2 0 0 0 0 0 on jan 1 on a 5 year, 1 2 % note to help finance contruction of the building. in addition the company had outstanding all year a 1 0 % , 3 year, 6 4 0 0 0 0 0 note payable and a 1 1 % , 4 year, 1 2 0 0 0 0 0 0 note payable. the weighted average interest rate used for interest capitalizaiton purposes is closest to ? 1 0 . 8 5 % , 1 1 % , 1 0 . 5 % , or 1 0 . 6 5 %