A Company Holds Information About 1000 Customers

Multiple Choice

A company holds information about 1000 customers. It receives, on average, 50 orders per day. Each order must be placed by only one customer. Customers must have placed at least one order but may place several. An analyst has shown an association between the classes Customer and Order. What multiplicities should she show at the Order end of this association?

A) 0..*.
B) 1.*.
C) 0..50.
D) 1..1000.