Answer:
low-involvement
Step-by-step explanation:
The level of involvement indicates how much information you need to make a decision for a product and how important the product is to you.
High involvement products require people to acquire more information and think carefully about them. For example, buying a house is a high involvement product.
Low involvement products are not so important to a person. For example, toothpaste, detergent etc.
People generally do not have a strict preference of a low involvement product. If the brand a person likes is not available then the person can easily switch to another brand. In the case mentioned here a stock out would make the people choose another brand and hurt their profits.