What is the optimal way to Implement this feature?

exams PDI V3 PDI exam 0 Comments

When a user edits the Postal Code on an Account, a custom Account text field named ”Timezone” must be updated based on the values another custom object object called.

What is the optimal way to Implement this feature?
A . Build a flow with flow Builder.
B. Build an account assignment rule.
C. Create a formula field.
D. Create an account approval process.

Answer: A