Which two operations can be performed on an external table?

Which two operations can be performed on an external table? (Choose two.)

A.
Create a view on the table

B.
Create an index on the table

C.
Create a synonym on the table

D.
Add a virtual column to the table

E.
Update the table using the UPDATE statement

F.
Delete rows in the table using the DELETE command

Explanation:
Topic 2, Volume B