Irrevocable trusts can avoid probate and reduce estate taxes because the assets contained within the trust are $\_\_\_\_\_\_\_\_$ when the trust is created, and it is $\_\_\_\_\_\_\_\_$ to reverse this action.

Group of answer choices

removed from the estate entirely; impossible

reclassified for taxation purposes; impossible

removed from the estate entirely; expensive and time consuming

untouchable until the fund matures; necessary to sue the trust