Answer:
The correct answer is that the existing product is altered or modified as per the texture, sound, taste and appearance.
Explanation:
Product Modification is the term which is defined as the attempt of the company to extend the length of the product life cycle through making large or small changes to the product in order to keep the customers interested in the product.
In short, it is the procedure to change the existing product as per the needs, taste of the customer. For example, change in the packaging of the product.
So, in the procedure of product modification, the existing product is altered or modified as per the texture, sound, taste and appearance.