Refer to the figure above. In this market, if all buyers’ reservation prices for a cup of coffee increased by $1.00；A.the equilibrium price would not change.

Refer to the figure above. In this market, if all buyers’ reservation prices for a cup of coffee increased by $1.00；A.the equilibrium price would not change.
B.the equilibrium price would increase by more than $1.00.
C.the equilibrium price would increase by less than $1.00.
D.the equilibrium price would increase by $1.00.
正确答案：the equilibrium price would increase by less than $1.00.