Final answer:
Benjamin Franklin primarily focused on diplomacy and scientific pursuits while living in London.
Step-by-step explanation:
While Benjamin Franklin lived in London for many years, he did not spy on the British for the colonies, sell information to the French, or specifically help maintain good relations between the colonies and the British Government.
During his time in London, Franklin was primarily involved in his scientific and diplomatic pursuits. He served as the U.S. Ambassador to France and helped negotiate the Treaty of Paris that ended the American Revolution. Franklin was highly respected in France and had a significant influence there.
Overall, Franklin's time in London was focused on diplomacy and scientific endeavors rather than espionage or selling information.