Consider a $4 Excise Tax That Has Been Levied on Suppliers

Consider a $4 excise tax that has been levied on suppliers of automobile tires.Legislators,in the interest of fairness,change the law so that the tax is evenly split between suppliers and demanders,with each group legally required to pay $2 per tire.In this situation,we can predict that

A) suppliers will be made better off and demanders will be made worse off.
B) the change will have no economic effect on suppliers and demanders.
C) demanders will "pass back" their share of the tax to the suppliers,so that suppliers continue to pay $4 per tire.
D) the economic incidence of the tax will be evenly split between suppliers and demanders.