I can seem to find the answer in our text book or Study guide I've read 5 articles on the net but its still not giving me answer everything is vague....

I can seem to find the answer in our text book or Study guide

I've read 5 articles on the net but its still not giving me answer everything is vague.

1.7 The possible costs attached to a stock out are (1)

A. the cost of a back order.

B. the cost of a lost sale.

C. the cost of a lost customer.

D. none of the above.

E. all of the above.