Answer:
C) shift the supply curve up by exactly $4 and the price paid by buyers will rise by less than $4.
Step-by-step explanation:
A new tax will reduce the money received by the suppliers, which will result in a leftward shift of the supply curve. This means that the price of DVDs will increase at every level of quantity demanded. This will also decrease the total demand for DVDs since their price will increase.
Even though the tax is levied on the suppliers, both the suppliers and the consumers will suffer from it.