Ancient Romans explained events in their daily lives

Daily life in a Roman city was completely dependent on one's economic status.

The city, however, remained a mixture of wealth and poverty, often existing side by side.

The wealthy had the benefit of slave labor whether it was heating the water at the baths, serving them their evening meal, or educating their children.

the answer to fill in the blank in this question would be the word resource, it is defined as the money, material or people (since human resource is a very valuable good) that a company or a person has at disposition (meaning they can use the resource as they see fit), to be able to complete a task or achieve a goal.