单选题
Evaluate the following SQL statements that are issued in the given order：
What would be the status of the foreign key EMP_MGR_FK？（）A It would be automatically enabled and deferred.
B It would be automatically enabled and immediate.
C It would remain disabled and has to be enabled manually using the ALTER TABLE command.
D It would remain disabled and can be enabled only by dropping the foreign key constraint and re-creating it.
正确答案
答案解析
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