Concept:Accumulated fund is the net worth of a not-for-profit organisation, calculated as total assets minus total liabilities.Explanation:First, find the total assets: ₦10,000+₦15,000+₦3,500=₦28,500.Next, find the total liabilities: ₦4,500+₦3,000+₦150=₦7,650.Apply the formula: Accumulated fund=Total assets−Total liabilities.So, Accumulated fund=₦28,500−₦7,650=₦20,850.Answer:₦20,850 (Option B).