Which of the Following Best Describes the Practice of Fire

Which of the following best describes the practice of fire stick farming?

A) the process by which people offer up burnt sacrifices to divine entities in the hope of receiving a good harvest in return
B) a process by which crops are burned to prevent the spread of disease
C) a practice of burning certain areas to promote the speedy growth of new plants and flushing out game
D) an act taken by farmers to destroy the crops of their competitors