The correct answer is A . EBITDA stands for Earnings Before Interest, Taxes, Depreciation and Amortization . In asset-intensive organizations, depreciation is especially relevant because IAM recognizes depreciation and asset valuation as important elements of asset costing, valuation, and financial decision support. The IAM Anatomy discusses depreciation in the context of asset valuation and remaining life.
So the "D" in EBITDA is Depreciation .