Palm Beach Ltd Has Elected to Adopt the Allowed Alternative

Palm Beach Ltd has elected to adopt the allowed alternative treatment to account for some of its property,plant and equipment.The information available for the class of assets the entity wishes to covert to revaluation model follows.
$$\begin{array} { | l | r | r | r | } \hline { \text { Asset class } } & { \text { Cost } } & \begin{array} { c } \text { Accumulated } \\\text { depreciation }\end{array} & \text { Fair value } \\\hline & & & \\\hline \text { Machinery } & 45000 & 35000 & 7500 \\\hline \text { Motor vehicles } & 64000 & 8000 & 40000 \\\hline \text { Office equipment } & 25000 & 5000 & 30000 \\\hline & & & \\\hline\end{array}$$
Which of the following statements is correct if Palm Beach Ltd is to comply with AASB 116?

A) When office equipment is revalued, net profit will increase $10 000.
B) When machinery is revalued, net profit will increase by $2500.
C) When motor vehicles are revalued, net profit will decrease by $16 000.
D) When all assets are revalued, net profit will increase by $8500.