How must bundled fees charged by a corporate trustee to the trust be treated?

1. Bundled fees are fully deductible in computing trust AGI
2. Bundled fees are only deductible as itemized deductions subject to the 2% AGI limitation
3. Bundled fees are to be allocated between expenses allowed in computing AGI and those not so allowed by use of a reasonable method
4. Bundled fees may not be allocated by looking at the percentage of the fiduciary's time devoted to investment advice as opposed to that dealing with beneficiaries or other trust matters