Which three statements are true regarding indexes? (Choose three.)

A. A SELECT statement can access one or more indices without accessing any tables

B. A table belonging to one user can have an index that belongs to a different user

C. When a table is dropped and is moved to the RECYCLE BIN, all indexes built on that table are permanently dropped

D. An update to a table can result in no updates to any of the table’s indexes

E. An update to a table can result in updates to any or all of the table’s indexes

F. A UNIQUE index can be altered to be non-unique