why this answer is C?

11. Figure: Supply Tax Price Supply + $2 tax $12 Supply 11.50 10 9.50 Demand 40 50 Quantity In the accompanying pizza market, with a $2.00 tax imposed on the sellers, how much of the tax is paid by the buyers and how much of the tax burden is borne by the sellers? a. Buyers pay all of the $2.00 tax. b. Sellers pay all of the $2.00 tax. c. Buyers pay $1.50 and sellers pay $0.50 of the tax. d. Sellers pay $1.50 and buyers pay $0.50 of the tax