What is true regarding direct-load insert？（）

• A、A direct-load insert can be invoked by suing the APPEND hint.
• B、Inserting using the NOLOGGING option is the default for direct-load inserts.
• C、All data loaded using direct-load insert is loaded below the high-water mark.
• D、An object that is modifies using parallel direct-load can be queried within the same Transaction.