Comprehensive and Detailed Explanation:

TheFor Eachaction in OIC iterates over a collection (e.g., multiple orders in a payload). Correct configuration involves:

Option C:Selecting theRepeating Elementfield and mapping it to the source element (e.g., /orders/order) containing the list of orders ensures OIC loops through each item individually. This is the standard and correct approach.

Option A:Parallel Processing exists but isn’t default for For Each; it’s an advanced setting requiring manual thread configuration, not ideal for basic iteration.

Option B:Group By is for aggregation, not individual processing, and doesn’t apply here.

Option D:Sequential Processing is implied in For Each, but “batch size” isn’t a configuration option for this action—it’s relevant to Stage File operations.

Mapping the repeating element ensures precise, individual order processing.