9708/13 Economics May Jun 2020 Online Test | Cambridge AS and A Level MCQ

In the diagram, D is the demand curve for Indian tea exports and ${S_1}$ is the initial supply curve.
The Indian government removes the tax on tea exports, which causes the supply curve to shift to ${S_2}$.
Which areas in the diagram measure the resulting loss in tax revenue to the Indian government and the resulting gain in consumer surplus?