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UGC-NET | UGC NET CS 2016 Aug – II | Question 19

Consider the following Entity-Relationship (E-R) diagram and three possible relationship sets (I, II and III) for this E-R diagram: 19 I "19 II "19 II "19 If different symbols stand for different values (e.g., t1 is definitely not equal to t2), then which of the above could not be the relationship set for the E-R diagram ?

(A)

I only

(B)

I and II only

(C)

II only

(D)

I, II and III

Answer

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