The diagram shows the market for bus services before and after a government subsidy.
Which area on the diagram shows the incidence of the subsidy for the consumer?

1 )
${P_1}HI{P_2}$
${P_1}JK{P_2}$
3 )
${P_2}IG{P_3}$
4 )
${P_2}KL{P_3}$
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