Economic portion of sandal wood is

Answer: Option B

The economic portion of sandalwood is Heart wood.
Sandalwood refers to the wood from tree species belonging to the family Santalaceae and the genus Santalum. The wood from these trees has a characteristic aromatic fragrance.
The heartwood is located at the inner part (center) of the wood. It is called such because of being located at the center of the wood.
Santalum album L., commonly known as Indian sandalwood, is a small tropical tree, widely accepted as the most precious and commercial timber species with an estimated market volume of more than $1 billion.