Final answer:
The British sent 350 ships to transport additional troops and supplies to suppress the rebellion in the American colonies. Tensions were high following punitive measures like the Tea Act and closing of Boston Harbor, leading to the formation of the First Continental Congress aimed at addressing colonial grievances.
Step-by-step explanation:
The British plan when they sent 350 ships to the American colonies was B) To transport additional troops and supplies to quell the rebellion.
This action was part of a larger strategy to suppress the growing unrest and revolution within the colonies, likely in response to various acts of defiance like the destruction of tea during the Boston Tea Party in 1773, which was protested against the Tea Act intended to offset British national debt and punish colonists.
The British were increasingly taking a hard-line stance, with actions like closing Boston Harbor and imposing punitive measures, indicative of their policy of law and order.
Furthermore, the First Continental Congress, formed in response to British actions, had a purpose of compiling a list of grievances against the British government, according to Exercise 7.3.3 c. compile a list of grievances against the British government and Exercise 3 c. compile a list of grievances against the British government.
The Congress sought to articulate the American Colonies' issues with British policies and seek redress for the same.