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A developer wrote an Apex class to make several callouts to an external system. If the URLs used in these callouts will change often, which feature should the developer use to minimize changes needed to the Apex class?
Correct Answer: C
The correct feature to use is C, Named Credentials. Named Credentials are a secure way of storing the endpoint and authentication details for callouts to external services. When URLs change frequently, using Named Credentials allows you to manage the endpoint URL in one place without changing the Apex code. References: Named Credentials