From the OmniStudio OmniScript Documentation:
* A Repeat Block (like BlkContacts) expects an array of objects.
* Each item in the array must contain fields that exactly match the UI elements inside the block.
* The parent JSON must include any top-level values used by individual input fields (like AccountName, AccountPhone).
Why the Other Options Are Incorrect:
* B. Uses Contacts instead of BlkContacts, and is incomplete/malformed.
* C. Repeats keys at the same level instead of using an array structure. This causes the data to overwrite and fail to display properly.
* D. Uses incorrect keys like "Name" and "Phone" instead of expected "ContactName" and
"ContactPhone", breaking field binding.
Reference:
Salesforce OmniStudio Developer Guide # OmniScript Repeat Blocks & Data JSON Structure DataRaptor Extract Output # Mapping JSON for OmniScripts