Calphalon makes 2 types of cooking pans. Calphalon Classic has two layers of nonstick protection, but cannot be put in a dishwasher and metal utencils cannot be used on it. Calphalon Signature has three layers of protection, can go in a dishwasher, and tolerates metal utencils well. The marginal cost of each pan is $20. The demand elasticity is -2 for Signature and -3 for Classic. What prices should Calphalon charge for these two pans?

1. $20 for both pans

2. $30 for Signature and $40 for Classic

3. $30 for Classic and $40 for Signature

4. $40 for Signature and $60 for Classic