Renditta is a fundamental economic index in silk reeling representing the quantity (in kilograms) of green (fresh) cocoons required to produce $1\text{ kg}$ of raw silk yarn:
$$\text{Renditta} = \frac{\text{Weight of Cocoons (kg)}}{\text{Weight of Raw Silk Reeled (kg)}}$$
lower renditta value indicates superior cocoon quality, higher shell ratio, and greater commercial silk recovery.
Other Terms: Denier measures yarn linear density; Button and Jetteboutte are mechanical reeling basin components.
Correct Option: Option 1 (Renditta).
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