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A company has a native iOS order placement app that needs to connect to Salesforce to retrieve consolidated information from many different objects in a JSON format. Which is the optimal method to implement this in Salesforce?
Correct Answer: A
Apex REST web services are the best method for creating custom endpoints that return data in a specific format, such as JSON, which is perfect for a native iOS application that needs to integrate with Salesforce for retrieving data.References: Apex Developer Guide - Exposing Apex Methods as REST Web Services