Use the Following Information for

Multiple Choice

Use the following information for
RF Company had January 1 inventory of $100,000 when it adopted dollar-value LIFO.During the year, purchases were $600,000 and sales were $1,000,000.December 31 inventory at year-end prices was $143,360, and the price index was 112.
-What is RF Company's gross profit?

A) $428,000.
B) $431,360.
C) $443,460.
D) $868,640.