Final answer:
The Sons of Liberty were the influential group that worked to spread anti-British sentiments between the colonies. They used propaganda and public media to gather support for the American Revolution and played a significant role in mobilizing colonists against British oppression.
Step-by-step explanation:
The influential group that worked to spread anti-British sentiments between the colonies was the Sons of Liberty. They were a secret organization formed in the American colonies to oppose British rule and promote the cause of independence. The Sons of Liberty used propaganda and public media to sway public opinion and gather support for the American Revolution. They played a significant role in mobilizing colonists against British oppression and ultimately contributed to the movement for American independence.