The Administration of Justice Act, part of the Intolerable Acts passed by the British Parliament in 1774, changed local government primarily by making gatherings, such as town meetings, illegal. This act allowed British officials to be tried in other colonies or in Britain for crimes committed in the course of their duties, effectively undermining local judicial authority and promoting resentment among the colonists. It restricted the ability of local governments in Massachusetts to operate independently and demonstrate self-governance. Therefore, the correct answer is:
It made gatherings, such as town meetings, illegal.