Read the following information carefully and answer the questions given below:
Five flats “ A, B, C, D, E. which are at equi-distance, are arranged in a semi-circle but not necessarily in the same order. The middle falt B faces towards North-East and is immediate right to D while C is to the immediate right of B.
What should come in the place of question mark (?) in the following letter series?
ADG CFI ? QJM