单选题 The cost of correspondence courses vary. Some are very cheap, and some are very expensive. A typical course costs about $ 700 or $ 900, but some courses can cost as much as $ 3,000. The program at the University of Iowa costs about $100 a semester.
The cost of correspondence courses ranges from $100 to $ 3,000.

• A. Right
• B. Wrong
• C. Not mentioned