Answer:
A salesperson talking about the advantages of the washing machines at his store.
Step-by-step explanation:
There is a certain criteria of calling a transaction as selling. There must be some offerings for exchange of some money, or any other article.
When a sales person in the store of washing machines, then it is obvious that all the machines in the store are kept as an offer to buy, further when the salesperson provides the description and that the salesperson targets to attract more customers. Therefore, there is an offering of the product.
Accordingly it will be termed as sales.
In any other case there is no article served for sale.