Two clinics in a market want to merge. The price elasticity of demand for clinic services is -0.20, if before a merge, firm A has marginal costs of $60 and a market share of 2 percent, and firm B has marginal costs of $60 and a market share of 4 percent. After the merger, the merged firm should be charging a price of:

1. $100
2. $60.00
3. $85.71
4. $66.67