A ternary relationship has degree
A1; a single entity set is involved
B3; three entity sets participate in each tuple
C2; two entity sets always sandwich a relationship
Dany value strictly greater than 4
Answer & Solution
Correct answer: B. 3; three entity sets participate in each tuple
NPTEL defines degree as the number of participating entities. Binary = 2, ternary = 3, n-ary = n. A common ternary case: a Supplier supplies a Part to a Project. The relationship has three entity sides; one tuple has one value from each.
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