Please answer number 1-4 in own words as much as possible ma'am/sir. Thank you!

1. Explain how high/low pricing can be an effective method to accomplish price segmentation.

2. Explain how promotional discounts are a form of price segmentation. Describe how a promotional discount can communicate information about a product.

3. Describe the conditions that would make the use of advance-purchase discounts appropriate.

4. When an airline offers standby fares to travelers with a military or student ID, what price-segmentation fences are being used? Explain.