Refer to Figure $6-15.$ Suppose a tax of $$2$ per unit is imposed on this market. Which of the following is correct?

A$.$ One$-$fourth of the burden of the tax will fall on buyers, and three$-$fourths of the burden of the tax will fall on sellers.

B$.$ One$-$third of the burden of the tax will fall on buyers, and two$-$thirds of the burden of the tax will fall on sellers.

C$.$ One$-$half of the burden of the tax will fall on buyers $,$and one$-$half of the burden of the tax will fall on sellers.

D$.$ Two$-$thirds of the burden of the tax will fall on buyers, and one$-$third of the burden of the tax will fall on sellers.