The minimum cardinality from the Sales event to the Services entity is most likely 1 because
A) every sale includes performing a service.
B) a service is only recorded once a sale has occurred.
C) only 1 service is provided for each sale.
D) the minimum cardinality would not be 1; it would most likely be 0.

Question

Quizplus · Accepted Answer

The statement "every sale includes performing a service" indicates that there is a mandatory relationship between the Sales event and the Services entity. Therefore, the minimum cardinality from Sales to Services is most likely 1.

The Minimum Cardinality from the Sales Event to the Services