This Graph Illustrates the Market for Groceries with and Without

This graph illustrates the market for groceries with and without a per unit tax:
A sales tax on groceries of $2.00 per unit would increase the equilibrium total price by

A) more than $2.00 but less than $4.00.
B) exactly $2.00.
C) less than $2.00 but more than $1.00.
D) exactly $1.00.