Some developers of apps for the Apple iPhone price their apps low at launch to encourage sales and get attention so they can move into the prestigious "Top 25" list. Then, they frequently raise prices to get a higher profit margin on later sales. The initial low price is a(n):
A. noncumulative quantity discount
B. temporary sale
C. introductory price deal
D. skimming price
E. cumulative quantity discount
Answer: C. introductory price deal