Brandon, an Individual, Began Business Four Years Ago and Has

Brandon, an individual, began business four years ago and has never sold a §1231 asset. Brandon owned each of the assets for several years. In the current year, Brandon sold the following business assets:
Assuming Brandon's marginal ordinary income tax rate is 35 percent, what effect do the gains and losses have on Brandon's tax liability?
$$\begin{array} { | l | r | r | r | } \hline \text { Asset } & \begin{array} { r } \text { Origina } \\\text { Cost }\end{array} & \begin{array} { r } \text { Accumulated } \\\text { Depreciation }\end{array} & \text { GainLoss } \\\hline \text { Machinery } & \$ 30,000 & \$ 7,000 & \$ 10,000 \\\hline \text { Computers } & 10,000 & 6,000 & ( 2,000 ) \\\hline \text { Building } & 90,000 & 20,000 & ( 2,000 ) \\\hline\end{array}$$

A) $7,000 ordinary income, $1,000 §1231 loss and $2,100 tax liability.
B) $6,000 ordinary income and $2,100 tax liability.
C) $7,000 §1231 gain and $2,450 tax liability.
D) $7,000 §1231 gain and $1,050 tax liability.
E) None of these