In a relational database, a foreign key is used to:

Which of the following makes C $ E or Y % E definitely true?

Statement: E < F ≤ G = H, I ≥ G ≤ J ≤ K

Conclusion: I. K > E          II. H > K

Statements: C = A ≤ H < K ≥ L = Q; S = T ≥ K

Conclusion: I. C < T II. A = S

Statement: A < Z > I < B > S = O ≤ N

Conclusions:

I. S= N

II. B > O

Statements: T > U, V > W, U = X, R ≥ X, V = R

Conclusion:

I. T ≥ W

II. W > T

Statements: V & T, T # L, L $ Z, Z @ A

Conclusions: I. Z $ T                         II. Z & T

Statements: A $ B @ D & E @ G % H, F & A, G $ J

Conclusions: I. A # H II. D $ J

Statements:       M # N # O $ P & Q % R % S

Statement: X=Y≤Z>T; T>Q ; X ≥R

I. Z≥R

II. R>Q