What three techniques should an Architect consider?

Universal Containers has a requirement to query all Account records within Salesforce that were updated in the last 24 hours and download those Accounts to their data warehouse on a nightly basis. They expect the volume of records to be between 500-1500 records per day.

What three techniques should an Architect consider? Choose 3 answers
A . Leverage a time-based workflow action to trigger an account outbound message notification for all records updated within the last 24 hours.
B . Leverage the Enterprise WSDL getUpdated() operation to retrieve Account records updated within the last 24 hours.
C . Leverage the Salesforce Data Replication API getUpdated() operation to retrieve Accounts records updated within the last 24 hours.
D . Leverage a third party tool ETL with a dynamic changing SOQL to retrieve Accounts updated within the last 24 hours.
E . Leverage the REST API / sObjects / Account / updated URI to retrieve Accounts records updated within the last 24 hours.

Answer: B,C,D