Suppose that after an excise tax was imposed on sofas, the price buyers paid for sofas increased by $$7.$ Suppose further that the price elasticity of demand for sofas is $0\mathrm{.}6$ and the price elasticity of supply for them is $0\mathrm{.}8.$ It can be concluded with certainty that the amount of the excise tax was

Select one:

A$.$ less than $$7.$

B$.$ $$7.$

C$.$ greater than $$7$ but less than $$14.$

D$.$ $$14.$

E$.$ greater than $$14.$