What process automation capabilities would the Admin use to meet this requirement?

The Salesforce Admin needs to automate a process that sends an approval request to the VP of Sales for any account record that changes from Prospect to New Customer.

What process automation capabilities would the Admin use to meet this requirement?
A . Use an Apex Trigger to change the Account field value from "prospect" to "customer" and email the Account Owner as a reminder to get an approval from their Manager.
B. Use a Record Trigger Flow to change the Account field value from "prospect" to "customer" and email the Account Owner.
C. Use a Flow to update the field and trigger on Approval Process to notify the VP of Sales.
D. Use o Process to monitor t changed field value on the Account object from "prospect" to "customer" and an action to submit the record to an Approval Process

Answer: C