Final answer:
The correct answer is option a) Haden Edwards.
Step-by-step explanation:
The individual who invaded Nacogdoches on December 18-26, seized the old stone fort, and declared the independent republic of Fredonia was Haden Edwards. Edwards and his group took this action after being disgruntled with the Mexican government for nullifying their land grant agreement.
Their declaration did not last long, however, as the Mexican army marched to the town and, with the help of forces led by Stephen F. Austin, quelled the rebellion, leading to Edwards's swift departure from Texas.