Copper Company uses plant wide overhead rate based on direct labor hours. At the end of the year actual overhead and actual working hours were calculated as follows: Actual overhead : 275.000 TL Actual working hours : 42.000 direct labor hours If under applied overhead is equal to 2.000 TL, predetermined overhead rate would be; a. 7,40 TL per direct labor hour. b. 6,50 TL per direct labor hour. c. 6,00 TL per direct labor hour. d. 7,50 TL per direct labor hour. e. 6,60 TL per direct labor hour