Jan. $1,2023,$ Pete $($Parent$)$ sold equipment to Sam $($Subsidiary$)$ for cash price $$280,000.$ Related facts include: original cost of equipment was $$300,000.$ Accumulated depreciation on the equipment at Dec. $31,2022$ was $$90,000.$ Remaining useful life of equipment to Sam on Jan. $1,2023$ was $7$ years. Equipment is still held by Sam at the end of $2023.$

Related to the equipment sold to Sam, what is the net book value that should be reported in the December $31,2023$ consolidated balance sheet?

a$.70,000$

b$.180,000$

c$.10,000$

d$.0$

e$.$ not listed