In which method of Address Resolution Protocol the implementation is more difficult? Were "T" stands for Table lookup, "C" for Closed-form Computation and "D" for Data Exchange?

(A) T,C
(B) T
(C) C
(D) D

In which method of Address Resolution Protocol the implementation is more difficult? Were “T” stands for Table lookup, “C” for Closed-form Computation and “D” for Data Exchange?