The income effect, substitution effect, and diminishing marginal utility all help explain the downward-sloping demand curve by illustrating how consumers adjust their purchasing behavior in response to changes in income, price, and the satisfaction derived from goods. These concepts show the relationship between price and quantity demanded. They are essential for understanding consumer choices in economics. ;
The income effect, substitution effect, and diminishing marginal utility all contribute to explaining the downward-sloping demand curve by revealing how consumer choices change with price and income variations. The correct choice in this context is B, as they all relate to understanding how demand varies with price. These concepts highlight the interconnectedness of consumer behavior in economics.
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