Examine the description of the PRODUCT_DETAILS table:
Which two statements are true?
A. PRODUCT_PRICE contains the value zero by default if no value is assigned to it.
B. PRODUCT_PRICE can be used in an arithmetic expression even if it has no value stored in it.
C. EXPIRY_DATE cannot be used in arithmetic expressions.
D. PRODUCT_ID can be assigned the PRIMARY KEY constraint.
E. EXPIRY_DATE contains the SYSDATE by default if no date is assigned to it.
F. PRODUCT_NAME cannot contain duplicate values.
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BD
BD
BD
B,D
BC
CD