Which of the following is not a factor affecting price mix?

The correct answer is Option (2) → Labelling

Price mix (or price determination) is influenced by factors such as product cost, utility and demand, and marketing methods used. These factors directly affect how a company sets the price of its product. However, labelling is related to the product mix, not the price mix. It deals with providing information about the product, brand, and usage — not with determining its price.