A trust is a legal arrangement whereby the title to property is held for the benefit of a third party by a(n)

In a trust, the trustee plays a crucial role in managing and holding the property title for the benefit of the beneficiary. The trustee is the individual or institution responsible for ensuring that the terms of the trust are carried out according to the trustor's wishes and in the best interest of the beneficiary. This includes duties such as managing investments, paying bills, and making distributions as outlined in the trust document.

The trustor, also known as the grantor or creator of the trust, is the party who establishes the trust and transfers assets into it, but they do not hold title to the property in the trust. The beneficiary is the person or entity that receives the benefits from the trust. An attorney in fact refers to someone authorized to act on behalf of another, typically under a power of attorney, but does not pertain to the function of managing a trust. Thus, the trustee is the correct answer because of the essential role they play in overseeing the trust and its assets.