4. If there is an association between a SUPPLIERS class and a PURCHASES class,

which of the following best describes the multiplicities next to the SUPPLIERS class?

Assume that SUPPLIERS are added to the database before the first purchase.

a.

b

Minimum 0, Maximum 1

Minimum 0, Maximum

Minimum 1, Maximum 1

Minimum 1, Maximum

There is no association between SUPPLIERS and PURCHASES

in the model