单选题Which statement is true regarding synonyms?（）ASynonyms can be created only for a table BSynonyms are used to reference only those tables that are owned by another user CA public synonym and a private synonym can exist with the same name for the same table DThe DROP SYNONYM statement removes the synonym, and the table on which the synonym has been created becomes invalid
单选题
Which statement is true regarding synonyms?（）
A
Synonyms can be created only for a table
B
Synonyms are used to reference only those tables that are owned by another user
C
A public synonym and a private synonym can exist with the same name for the same table
D
The DROP SYNONYM statement removes the synonym, and the table on which the synonym has been created becomes invalid
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