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

We can conclude that the colonists should choose their representatives and only those representatives were allowed to collect taxes.

Explanation:

The text above shows how the tax collection decision was made in the colonies. It was decided that it was necessary for a colonial representative to be elected. This would have the responsibility of organizing and managing the colony, as well as promoting the taxes necessary for the colony to function and how the collection of these taxes would be. Only the representative could do this and it was necessary for the colonists to choose who would occupy this position.

the monroe doctrine is the best known u.s. policy toward the western hemisphere. buried in a routine annual message delivered to congress by president james monroe in december 1823, the doctrine warns european nations that the united states would not tolerate further colonization or puppet monarchs.