(a) Self-explanatory             B. Elaborate              C. Distinctive                        D. Feasible  

(a) Each communication, going up or down, must flow through each position in the line of authority (b) Chain of communication cannot be broken under any circumstances.  

(a) He has satisfying approach in decision making rather than the maximising approach (b) He can make decision without determining all possible alternatives (c) He is completely rational in decision making