Pepper Company completely owns Salt Inc. On January 2, 2019 Pepper sold Salt machinery at its carrying amount of $30,000. Pepper had the machinery two years before selling it and used a five-year straight-line depreciation method, with no residual value. Salt will use a three-year straight-line method. In the 2019 consolidated income statement, the depreciation expense

A, required no adjustment.

B, decreased by $4,000.

C, increased by $4,000.

D, increased by $30,000.