The correct answer is: A. abiotic
Coal is a non-renewable energy source formed from the remains of ancient plants and animals that have been buried and subjected to intense heat and pressure over millions of years. It is an abiotic resource, meaning that it is not derived from living organisms.
Option B, inorganic, is incorrect because coal is a mineral, which is a naturally occurring inorganic solid.
Option C, deforestation, is incorrect because coal is not a product of deforestation. Deforestation is the clearing of forests for other uses, such as agriculture or development.
Option D, none of the above, is incorrect because coal is an abiotic resource.