Answer:
4) Retail and e-commerce
Step-by-step explanation:
The retail industry comprises businesses that sell to the final consumers of goods and services. Examples of firms in the retail industry retail stores, supermarkets, banks, gas stations are all other businesses that sell to end consumers. The retail business requires inventory to sell to customers. Out-of-stock is a situation where a retail outlet has run out of a particular product or products to sell to customers. It results in customers being turned away and lost revenues.
eCommerce is business done via the internet. The retail industry has incorporated eCommerce in its operations.