Exam MCIA - Level 1 topic 1 question 77 discussion

An external REST client periodically sends an array of records in a single POST request to a Mule application's API endpoint.
The Mule application must validate each record of the request against a JSON schema before sending it to a downstream system in the same order that it was received in the array.
Record processing will take place inside a router or scope that calls a child flow. The child flow has its own error handling defined. Any validation or communication failures should not prevent further processing of the remaining records.
To best address these requirements, what is the most idiomatic (used for its intended purpose) router or scope to use in the parent flow, and what type of error handler should be used in the child flow?