The challenge solution says that a gas tax is roughly equally shared by consumers and firms in the long run. what can you say about the elasticities of supply and demand ? if the consumer incidence of a gas tax is roughly equal to the burden of the tax for firms in the long run, then a. the elasticities of supply and demand are roughly equally elastic. b. the elasticity of demand is almost zero and the elasticity of supply is almost infinite. c. the elasticity of demand is almost zero and the elasticity of supply is almost unitary. d. the elasticities of supply and demand are both almost zero. e. the elasticities of supply and demand are both positive.