(a) A trustee shall keep the current beneficiaries of the trust reasonably informed about the administration of the trust and of the material facts necessary for them to protect their interests. Unless unreasonable under the circumstances, a trustee shall within a reasonable time respond to a beneficiary’s request for information related to the administration of the trust.
(b) A trustee:
(1) Upon request of a beneficiary, shall within a reasonable time furnish to the beneficiary a copy of the trust instrument;