Let A, B, C and D be invertible n xn matrices with n> 7, which satisfy the equation ABCT DBA"C = ABT Which one of the following expressions for D is true? O a. D= AB" A-'B-'(C")-'B-"(AT)-"C-| Ob. D = A-B-'(C")-'AB" B-(A")-!c-! Oc. D= (C-)TB-' B"C-'(A")-'B- O d. D= (C-)TB-A-c-'(A")-B-'AB" O e. D= A- B-

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