Which three are true about the MERGE statement?

Which three are true about the MERGE statement?
A. It can combine rows from multiple tables conditionally to insert into a single table.
B. It can merge rows only from tables.
C. It can use subqueries to produce source rows.
D. It can update, insert, or delete rows conditionally in multiple tables.
E. It can update the same row of the target table multiple times.
F. It can use views to produce source rows.

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