On the design process of the count-up counter in Excess-3 code using T-FF which of the following answers are incorrect? The minterm numbers for each Flip Flop: C2 A B C D 1 0 1 0 0 2 0 1 0 1 3 0 1 1 0 4 0 1 1 1 5 1 0 0 0 61001 9 1 1 0 0 Td=f(a, b, c, d) = Em (0,1,2,3,4,5,6,7,8,9) OA Tr=f (a, b, c, d) = 2m (0,2,4,6,8) OB. Tb=f(a, b, c, d) = Em (1,4,9) OD Ta=f(a, b, c, d) - Em (4,9) E all answers are correct