Database Management Systems Set 5

What is the output when the data 'FOREIGN key' is set to the text format > in Access?
(A) foreign key
(B) FOREIGN KEY
(C) Foreign Key
(D) Foreign key
FOREIGN KEY
What is the reason for not accepting zero in the fields of Access tables?
(A) Fields is set with is Null or > 0
(B) Fields is set with is Null or < = 0
(C) Fields is set with is Null or! [0]
(D) Fields is set with is Null or like ???
Fields is set with is Null or > 0