Final answer:
President Jackson and his followers used several tactics to get Native Americans to sign treaties, including persuading, bribery, and threatening. Direct fighting was not typically used.
Step-by-step explanation:
The correct answer is d. fighting. President Jackson and his followers used several tactics to get Native Americans to sign treaties that led to their removal from their land. These tactics included persuading, bribery, and threatening. However, direct fighting or physical force was not typically used to coerce Native Americans into signing treaties.