Final answer:
The fine and sheer fabric made from cotton or wool, which is smoother and finer than challis, is Chiffon.
Step-by-step explanation:
The material that is commonly made today in cotton but can also be made from many other fibers, that is very fine and sheer, and when made in wool, is smooth and finer than challis, is d) Chiffon. Chiffon is a lightweight, balanced plain-woven sheer fabric woven of alternate S- and Z-twist crepe (high-twist) yarns. The twist in the crepe yarns puckers the fabric in such a way that a slight stretch is created, giving chiffon a bit of give. It's a fabric that drapes well, making it a designer's delight for evening gowns and wedding dresses, as well as blouses and scarves.