If he empowered to make the decisions he or she thinks best is acting as a: Trustee.
Trustee can be defined as the person in which decison is vested on or a person who is entrust with something.
A person is said to be a trustee when such person makes a decisions that will benefit the member of the group they belongs to or when such person makes a decison that he/she felt is the best decision to make.
Therefore If he empowered to make the decisions he or she thinks best is acting as a: Trustee.
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