British increase taxes on colonists - -> Colonists reject taxes passed without representation - ->? - -> Declaration of Independence

Which action completes the diagram?

Colonists vote to elect new members of Parliament

British eliminate all taxes on colonists

Colonist send troops to Britain in protest

British ignore colonist grievances

The action that completes the diagram is:

British ignore colonist grievances.

Following the British Constitution, Britain was not allowed to taxate its subordinate colonies without the approval of their representatives in Parliament. But the problem was that these colonies in America were no represented and still had to pay for taxes imposed on them. Soon they clung to the motto "no taxation without representation". This eventually increased tensions between the two and led to the American Revolutionary War (colonies vs Britain), which resulted in the Declaration of Independence.

I think the answer is British eliminate all taxes on colonists