Chamiching Makes Hacksaw Blades In the First Year, Variable Costs Accounted for Half of First

Chamiching makes hacksaw blades. Inventory values are determined using the first in, first out (FIFO) method. Production and sales data for the first three years appear below. $$\begin{array} { | c | c | c | } \hline \text { Hacksaw blades } & \text { Sold } & \text { Produced } \\\hline Y r 1 & 18,000 & 22,000 \\\hline Y r 2~ & 25,000 & 23,000 \\\hline Y r ~ 3 & 37,000 & 35,000 \\\hline\end{array}$$ $$\begin{array} { | c | c | c | } \hline & \text { Sales price } & \text { Full cost } \\\hline \operatorname { Yr } 1 & \$ 10.00 & \$ 6.00 \\\hline \operatorname { Yr } 2 & \$ 11.00 & \$ 6.60 \\\hline \operatorname { Yr } 3 & \$ 12.00 & \$ 7.60 \\\hline\end{array}$$ In the first year, variable costs accounted for half of the full costs. Total fixed production costs increased each subsequent year by 20%, as a result of step-fixed costs and a general inflationary price increase. For Chamiching, if variable costing is used, which of the following is true?

A) Yr 3's gross profit is $171,687
B) Yr 1's gross profit is $48,000
C) Yr 2's gross profit is $123,200
D) Yr 2's gross profit is $129,513
E) None of the above