Final answer:
Thomas Jefferson wrote the Declaration of Independence to air grievances against the British king, listing specific actions that violated colonists' rights and freedoms, aiming to convince others to join the cause of independence.
Step-by-step explanation:
The best description of Thomas Jefferson's purpose in writing the Declaration of Independence is to air grievances against the British king. Jefferson wrote the document to outline the colonists' complaints and justify their decision to separate from Britain. He listed specific actions by King George III that violated their rights and freedoms. By doing so, Jefferson aimed to convince other colonists to join the cause of independence.
Learn more about Thomas Jefferson's purpose in writing the Declaration of Independence