Refer to the association marked with the number 3 in the preceding diagram. What is the best

Question:

Refer to the association marked with the number 3 in the preceding diagram. What is the best interpretation if the minimum multiplicity next to Customers is 0 instead of 1?
a. Some customers don’t pay.
b. Some customers place orders but don’t pick up their items.
c. Some sales are made in cash and customer information is not recorded.
d. Some customers never buy anything.
e. None of these interpret this situation appropriately.