Which three considerations should an Architect bring up to the CIO?

Universal Container needs to integrate Salesforcewith several home-grown systems. These systems require custom code to be written in order to integrate with them, and the CIO argues that if custom code needs to be written, then there is no reason to invest in middleware.

Which three considerations should an Architect bring up to the CIO? Choose 3 answers
A . Performance
B . Error Handling
C . Bulkification
D . Orchestration
E . Logging

Answer: B,D,E