Assume the following: Reserve for depreciation at current year end= $50,000; Current year's depreciation expense= $10,000; Original cost of fixed assets= $200,000; Inventory at current year end= $20,000; Current year's amortization expense= $5,000. Required: Calculate the net book value of the fixed assets. Correct answer is:

	A.	$150,000
	B.	$190,000
	C.	$140,000
	D.	None of the above