B2C-COMMERCE-ARCHITECT practice

Q1 Single choice

Northern Trail Outfitters uses an Order Management system (OMS), which creates an order tracking number for every order 24 hours after receiving it. The OMS provides only a web-service interface to get this tracking number. There is a job that updates this tracking number for exported orders, which were last modified yesterday.

Part of this jobs code looks like the following:

Based on the above description and code snippet, which coding best practice should the Architect enforce?

A
Post-processing of search results is a bad practice that needs to be corrected.
B
The transaction for updating of orders needs to be rewritten to avoid problems with transaction size.
C
Configure circuit breaker andtimeout for the OMS web service call to prevent thread exhaustion.
D
Standard order import should be used instead of modifying multiple order objects with custom code.