Examine the command:
What does ON DELETE CASCADE imply?
A. When the BOOKS table is dropped, the BOOK_TRANSACTIONS table is dropped.
B. When the BOOKS table is dropped, all the rows in the BOOK_TRANSACTIONS table are deleted but the table structure is retained.
C. When a row in the BOOKS table is deleted, the rows in the BOOK_TRANSACTIONS table whose BOOK_ID matches that of the deleted row in the BOOKS table are also deleted.
D. When a value in the BOOKS. BOOK_ID column is deleted, the corresponding value is updated in the BOOKS_TRANSACTIONS.BOOK_ID column.
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