The promise of a bill of rights was key to winning the support of which of the following groups?

-Federalists

-Antifederalists

-northern industrialists

-southern farmers

The answer is Antifederalists

Antifederalists want to limit the power of the central government upon the citizens.

Because of this, they created the bill of rights in order to give the citizens with basic freedoms that couldn't be intervened by the government members, no matter how high their position might be.