Consider Five Individuals with Different Occupations In a Barter System Which of the Following Pairs Has

Consider five individuals with different occupations. $$\begin{array} { | l | l | l | } \hline \text { Allen } & \text { praparas taxes } & \text { wants ribs } \\\hline \text { Betty } & \text { does dry cleaning } & \text { wants campute fixed } \\\hline \text { Cakin } & \text { fixas canguters } & \text { wants bread } \\\hline \text { Diedre } & \text { bakes bread } & \text { wants taxes pregared } \\\hline \text { Eric } & \text { Garbecues ribs } & \text { wants dry cleaning } \\\hline\end{array}$$ In a barter system which of the following pairs has a double coincidence of wants?

A) Allen and Eric
B) Diedre and Calvin
C) Both A and B are correct.
D) None of the above are correct.