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Extracted text: Wolfpack, Inc. has the following financial statement disclosures related to its property, plant and equipment for the years ending December 31, 2019 and December 31, 2018. Dec 31. 2019 Dec 31, 2018 Land and improvements 227,202 228,057 Buildings and improvements 1,233,850 1,164,384 Equipment Furniture, fixtures and other Gross property, plant & equipment $2,868,788 669,473 654,779 738,263 713,505 $ 2,760,725 (1.362.623) $ 1,398,102 Accumulated depreciation (1.667.138) Net property, plant & equipment $ 1,201,650 Annual depreciation expense $ 304,515 $ 291,203 What are the estimates for the total useful life, age, and remaining useful life of the company's depreciable assets as of December 31, 20197 O a. Total useful life = 9.4 years; Age of depreciable assets 5.5 years; Remaining useful life = 3.2 years. Ob.Total useful life = 9.4 years; Age of depreciable assets = 6.3 years; Remaining useful life = 2.4 years. OC. Total useful life 8.7 years; age of depreciable assets = 5.5 years; remaining useful life = 3.2 years. O d. Total useful life 8.7 years; age of depreciable assets - 6.3 years; remaining useful life = 3.2 years. O e. Total useful life = 8.7 years; age of depreciable assets - 6.3 years; remaining useful life =2,4 years.