A decrease in the price level is the cause of movement along the demand and curve. Hence, option B is correct.
Demand curve is consist of the quantity of the goods and service in comparison to the price demanded for the specific period of time.
The amount required will be shown on the horizontal axis and the price will be displayed on the left vertical axis.
The options are missing from the question-
A. An increase in consumption.
B. a decrease in the price level
C. an increase in net exports
D. a decrease in consumption
Thus, option B is correct.
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