"The only representatives of the people of these colonies are persons chosen therein by themselves; and that no taxes ever have been, or can be constitutionally imposed on them but by their respective legislatures." -Statement by the Stamp Act Congress, 1765

What is a valid conclusion that can be drawn from this quotation?

The valid conclusion would be that only the colonists' elected representatives should have the power to impose taxes.

Explanation:

The Stamp Act Congress was actually set up to raise and generate revenue from the American Colonies by a tax which they would give in the form of stamp on all the legal or commercial documents including newspapers. It also lead to a slogan "No taxation without representation". The resolution of this congress was to give the colonists proper rights and fair treatment.

wheres the passage with the idiom underlined