Answer: (d)
In the silk reeling method, we reel together numerous cocoon baves to generate a thread. This is done by unwinding filaments derived from a collection of cooked cocoons. The thread received from these cocoons is winded using a fast-operating reel.
Silk reeling is categorized into direct and indirect reeling. The standard-size wheel is used in the direct reeling process. In indirect silk reeling, smaller reels are transferred onto standard wheels for re-reeling. This is a prevalent technique in the modern era.