It can be deduced that Luciana's responsibility to Sofia is that of a customer.
It should be noted that a customer simply means an individual who purchases good from another company.
In this case, Luciana's responsibility to Sofia is that of a customer to a business. This was represented in the scenario as Ned represents Sofia in the sale of her townhome.
Learn more about customers on:
https://brainly.com/question/12831236