parliament responded to the boston tea party by withdrawing its military protection of Massachusetts. reducing the powers of self-government in Massachusetts. reducing the geographic size of the colony. threatening to launch a war against the Massachusetts militia.

Answer: Reducing the powers of self-government in Massachusetts.

Explanation:

As a response to the economic damage infringed on Britain by the Tea Party incident in Boston, in 1774, Boston's port was closed down indefinitely until the King declared otherwise. Furthermore, British soldiers were deployed in order to enact the measure and the seat of government was to be moved to Salem, further decreasing Boston's importance with the Royal Navy patroling Boston's harbour.