Which of the following is not considered listed property for purposes of determining the taxpayer's depreciation deduction?
1. A computer used exclusively by the tax payer in managing his investment portfolio
2. An automobile used 40 percent by an employee in providing services to his employer.
3. A computer used by a bank executive, on the bank premises, in performing services as an employee
4. A computer used by a taxpayer 40 percent in managing her investment portfolio and 20 percent in her business as an accountant.
5. None of the aboce