(b) it is obtained from wood pulp.
Rayon is a cellulose fiber which is made up of a raw material called wood pulp.
It is a regenerated cellulose fiber that is made from natural sources of cellulose, such as wood and other agricultural products.
It has the same molecular structure as cellulose.
It is obtained from beech, pine, or bamboo tree.
Wood pulp is a lignocellulosic fibrous material prepared by chemically separating cellulose fibres from wood.
The wood pulp is converted into soluble compound which is chemically solidified to form synthetic fiber.
As rayon is manufactured from naturally occurring polymers, it is considered different from synthetic fibres.