This is a classic use case for a Scheduled Flow. The Administrator can build a Scheduled Flow that:

Queries all open Opportunities related to Accounts where the Credit Status is Red.

Loops through the records.

Updates the Stage field to Freeze.

A. Correct — This is achievable declaratively using a Scheduled Flow, which provides scalability and avoids the need for custom code.

Incorrect Options:

B. A formula field cannot change field values; it's read-only.

C. Batch Apex is valid but not preferred when the use case is achievable declaratively.

D. An Apex trigger would require coding and is unnecessary for this logic.

Reference Extracts from Salesforce Process Automation Study Guide:

“Scheduled Flows can run on a recurring basis to find and update records meeting defined criteria.”

“Use flow to perform mass updates based on related object conditions without writing code.”

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