What abuse by the British government made the Founding Fathers include a representative assembly in the U.S. Constitution?

The correct answer is that the Founding Fathers included a representative assembly in the U.S. Constitution in response to the British government's repeated ignoring of petitions for redress. This behavior exemplified a broader pattern of dismissing the colonies' grievances and demonstrating a lack of respect for colonial interests and rights. The failure to address these petitions contributed to the prevailing sentiment among the colonies that they deserved a voice and representation in their own governance.

This desire for representation was critical to the Founding Fathers, who understood that a functioning democratic system must include the input of those being governed. By establishing a representative assembly, they aimed to ensure that citizens had a say in legislation and governance, directly addressing those frustrations with British rule.

While other factors such as taxation without representation, lack of trial by jury, and the quartering of troops were indeed significant in the broader context of colonial grievances and the eventual push for independence, it was the consistent ignoring of petitions that emphasized the need for a governing body that represented the people's interests.