Indicate the types of price discrimination for the cases below. Based on the above examples, explain the difference between these types of price discrimination. Case A1. Gino Pizza offers a lunch special: 5.59$ for a grilled chicken sandwich, a bottle of soft drink, and a small bag of potato chips. If you buy them individually, their prices are: 4.89$ for chicken sandwich, 1.50$ for soft drink and 0.99$ for potato chips. Case A2. Guggenheim Museum charges its customers in the following way: adults 18$, seniors (above 65) 15$, and children (under 12) free. Case A3. T-Mobile offers different cell phone service plans targeting at different consumer groups, such as 39.99$ for 300 min, 49.99$ for 600 min and 59.99$ for 1000 min.