Which of the following would be a business bad debt if it were uncollectible? a. A taxpayer loans his father $1,000 to start a business. b. A taxpayer loans his son $10,000 to purchase a rental house. c. A dentist, using the accrual basis of accounting, records income when it is earned and extends patient for services provided. d. A taxpayer loans his brother $3,000 to purchase a truck for use in his brother's business. e. None of the above. Paul is a general contractor. How much of the following expenses may Paul deduct? Vinnie has a small retail store and sells one product. His beginning inventory consisted of each for a total of $4,000. During the year, Vinnie made the following purchases of the March 1 5,000 products at $5 each = $25,000 August 1 1,000 products at $6 each = $6,000 Vinnie uses the LIFO method of inventory valuation and he sells 5,000 products during a. Calculate the total cost of goods available for sale. b. Calculate the cost of the ending inventory