Context: The prices represent Airmail rate to North America . Prices are subject to change without notice . No mimimum order via check , money order or credit card , but credit card orders under $ 15.00 will incur a $ 2.00 extra charge .
Question: Why are the prices a bit high ?
Option 0: None of the above choices .
Option 1: It is for money orders .
Option 2: It is for shipping via air .
Option 3: It is for shipping to North America .
Answer: 2