On January $1,2017,$ we purchased a truck for $$60,000.$ The truck has a useful life of $5$ years and a residual value of $$5,000.$ The truck is depreciated using the double$-$declining balance method. What is the book value after the adjusting entry for $2017?$

Group of answer choices

$$36,000$

$$33,000$

$$31,000$

$$24,000$