The correct answer is option 1: The revolutionaries stealthily entered into the ships and threw all the chests of tea into the water.

The Boston Tea Party of December 16, 1773, was an important event in the lead-up to the American War of Independence. It was a protest against the Tea Act imposed by the British Parliament, which gave a monopoly to the British East India Company over the American tea trade.

Option 1 correctly states that the revolutionaries, disguised as Native Americans, boarded the ships carrying the tea and threw all the chests of tea into the water. This act of protest was a direct response to the Tea Act and a symbol of defiance against British taxation without representation. The Boston Tea Party marked a turning point in the American colonists` resistance against British rule, leading to further acts of defiance and ultimately the American Revolution.

Options 2, 3, and 4 are incorrect. Option 2 suggests that the Tea Party was held to discuss grievances with Charles Townshend, which is not true. Option 3 implies a celebration of Lord North`s repeal of some duties, which is also incorrect. Option 4 suggests that the protest was against the Quebec Act, which is unrelated to the Boston Tea Party.