Final answer:
The correct term for the installation of a person in a church office by someone other than church officials is simony, which is not represented in the given options. It involved the selling of church positions, a practice that was condemned and reformed by the Cluniac movement and church officials.
Step-by-step explanation:
The installation of a person in a church office by someone other than church officials is called simony, which refers to the buying or selling of ecclesiastical privileges, for example pardons or benefices. When church positions were being treated like a fief, to be passed down or sold, the Cluniac movement along with the bishops of Rome worked to reform the church, condemning such practices. Instead, they advocated for the election of bishops by the clergy, devoid of any secular lord’s influence. The installation by irregular means does not correspond to any of the provided options, as excommunication is the exclusion from the church's communion, anointing and ordination are both part of legitimate church rites, and beatification is the declaration by the Catholic Church that a deceased person has entered a state of bliss and may be entitled to public religious veneration.