Which two are the minimal requirements for a self-join? (Choose two.)
A. Only equijoin conditions may be used in the query.
B. Outer joins must not be used in the query.
C. There must be a condition on which the self-join is performed.
D. No other condition except the self-join may be specified.
E. The table used for the self-join must have two different alias names in the query.
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