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We indicate roles in E-R diagrams by labeling the lines that connect ___________ to __________

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We indicate roles in E-R diagrams by labeling the lines that connect ___________ to __________

(a) Diamond , diamond

(b) Rectangle, diamond

(c) Rectangle, rectangle

(d) Diamond, rectangle

The question was posed to me in my homework.

Question is taken from Entity-Relationship Diagrams in section Database Systems Design and Implementation of Database Management

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Right choice is (d) Diamond, rectangle

For explanation: Diamond represents a relationship set and rectangle represents a entity set.

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