Why is it necessary to check colour fastness in traditional art?

Correct answer: So that the product does not spoil with use and time

Colour fastness means the ability of a colour to remain stable during normal use and over time. A traditional artwork may be touched, handled, exposed to light, cleaned, or affected by moisture, depending on the product. If its colours fade, bleed, or transfer too easily, the appearance and perceived quality decline. Customers may become dissatisfied, and the artist's reputation may suffer.

Testing colour fastness helps identify whether the chosen dyes, paints, materials, and finishing methods are suitable before the item is sold. The purpose is not to make the painting fade immediately, reduce its price without reason, or stop the artist's work. It is a practical quality-control step that protects durability and customer satisfaction. Therefore, option A is correct because stable colours help the product remain usable and attractive.