Based on this figure, which of the following contains the most oxygen? 
Definitions:
Money Income
The total amount of monetary earnings or receipts accrued by an individual or household in a given time period.
Market Demand Curve
A graphical representation showing the quantity of a good that all consumers in a market are willing to buy at each price level.
Income Effect
The change in an individual's consumption resulting from a change in real income, with shifts in purchasing power influencing spending behaviors.
Efficient Production Technologies
Technologies that enable the production of goods and services using the least amount of resources for the maximum output.
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