The Labrador Falls Company Has Three Divisions: a Division, B

The Labrador Falls Company has three divisions: A Division, B Division, and C Division.
$\begin{array}{lcc}&\text {A}&\text {B}&\text {C}\\\text { Sales } & \$ 320,000 & \$ 540,000&?\\\text { Net operating income } & 60,000 & ?&\$24,000 \\\text { Residual income } & ? & 36,000&14,400 \\\text { Average Division Assets } & ? & ?&80,000 \\\text { Cost of Capital } & 12 \% & 16 \%&? \\\text { Profit Margin } & 20 \% & 5 \%&? \\\text { Asset Turnover } & ? & 4.0 &?\\\text { Return investment } & 15 \% & ?&?\end{array}$


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What was A Division's residual income last year?

A) 8%.
B) 12%.
C) 18%.
D) 20%.