Answer:
A. The colonists have demanded fair treatment from the British government many times, and they believe separating from Britain is their last resort.
Step-by-step explanation:
What can be understood by the passage is that the colonists have demanded fair treatment from the British government many times, and they believe separating from Britain is their last resort because it is mentioned that they have tried to make them understand about their settlement in those lands, the ties they have and have asked for a good treatment and that the British have been deaf to all of their requests and because of that it is necessary to separate from them.