Which three statements are true regarding indexes?

A UNIQUE index can be altered to be non-unique

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

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

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

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

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