Jenna is a cash method taxpayer who made the following expenditures this year. Which expenditure is completely deductible in this period as a business expense? A) $4,000 for rent on his office that covers the next 24 months. B) $3,000 for a new watch for the mayor to keep "good relations" with city hall. C) $2,500 for professional hockey tickets distributed to a customer to generate "goodwill" for his business. D) $55 to collect an account receivable of $2,700 from a customer who has failed to pay for services rendered. E) None of the choices are completely deductible