Match each of the following graphs to the correct cost behavior. a b C \begin{tabular}{|l|c|} \hline & \multicolumn{1}{|c|}{ Cost Behavior } \\ \hline Graph a & Fixed cost per unit \\ \hline Graph b & Total fixed cost \\ \hline Graph c & Total mixed cost \\ Graph d & Total variable cost \\ Graph e & Variable cost per unit \\ \hline \end{tabular}