Answer:
The correct answer is d. none of the above
Step-by-step explanation:
Vellum was originally made from calfskin. They are typically used as a surface for writing. Vellum was prepared for many purposes like writing, produce single pages, or for printing, etc. They have great variation which is dependent on skin quality and preparation method but they are generally smooth and durable.
Now the paper vellum is synthetically made from cellulose fiber which is obtained from plants because preparation of vellum from animals' skin is time-consuming and expensive. Therefore the correct answer is d.