Which are two advantages of using Bulk API over SOAP API?

Universal Containers is planning to sue Bulk API instead of SOAP API to load 1 million activity records from Accounts. Opportunities, can Cases.

Which are two advantages of using Bulk API over SOAP API?
A . Bulk API needs fewer network round trips to complete the data load.
B . Bulk API doesn’t need a login to Salesforce and can process data offline.
C . Bulk API doesn’t need XML processing and can send data using CS
E . Bulk API needs Partner WSDL, whereas SOAP API needs Enterprise WSD

Answer: A,C