What tool should an app builder recommend to help meet this requirement?

Ursa Major Solar’s service department gets requests for several types of services, such as installation, repair, and maintenance. Service managers need to be able to tell when maintenance was last done on on asset to help determine If they are meeting contract agreements, but the last maintenance date can be difficult to determine when there are many work orders related to the asset. They think it would be helpful to have a field auto-populated on the Asset record when a maintenance work order gets closed.

What tool should an app builder recommend to help meet this requirement?
A . Visualforce
B . Roll-up Summary
C . Apex Trigger
D . Flow

Answer: D

Explanation:

A flow is an application that automates a business process by collecting data and performing operations in your org or an external system. Flows can also manipulate data in your org by creating, updating, deleting, or submitting records for approval. You can use flows to update fields on related records when a certain event occurs, such as closing a work order. In this case, a flow can be used to update the last maintenance date field on the Asset record when a maintenance work order gets closed.