What act cut off all trade between the American colonies and England?

The Prohibitory Act is the correct answer because it was specifically designed to cut off all trade between the American colonies and England as a response to the growing discontent and desire for independence among the colonists. Enacted in 1775, this legislation declared the colonies to be in rebellion, and as a result, it prohibited any trade and commerce with England. This act was a significant step that escalated tensions between the colonies and the British government, leading to further revolutionary activities and the eventual fight for independence.

The other options, while significant in colonial history, did not serve the same purpose as the Prohibitory Act. The Intolerable Acts were a series of punitive measures aimed at the colonies, the Stamp Act was focused on taxation through paper goods, and the Tea Act was primarily aimed at reducing tea taxes while still asserting British control. None of these acts effectively cut off all trade between the American colonies and England in the same decisive manner as the Prohibitory Act.