Which of the following are not examples of product cannibalization?

I. the loss of sales due to increased competition in the product market

II. the loss of sales because your chief competitor just opened a store across the street from your store

III. the loss of sales due to a new product which you recently introduced

IV. the loss of sales due to a new product recently introduced by your competitor

a)	I, III, and IV only
b)	I, II and IV only
c)	III only
d)	II and IV only
e)	IV only