What Salesforce platform capability should an Integration Architect consider?

Universal containers is migrating to Salesforce from a legacy system with existing SMTP-based integrations.

What Salesforce platform capability should an Integration Architect consider?
A . Custom Apex class with webservice methods that implement the SMTP protocol.
B . Custom InboundEmailHandler to process the messages.
C . Lightning connect with an oData/SMTP interchange.
D . Custom Apex batch job to check for SMTP messages.

View Answer

Answer: A