Supply Shifts from Production Changes, Not Price Adjustments

Steps:

• Poor harvests reduce fruit output, lowering available quantity at each price.
• This decreases fruit supply, shifting its curve left.
• Furniture discounts lower prices to boost sales volume.
• Discounts cause movement along the existing furniture supply curve, not a shift.

Why B is correct:

• Harvest failures cut fruit production costs or inputs, shifting supply left (law of supply: non-price factors like natural events alter curve position); discounts are price changes, moving along the curve without shifting it.

Why the others are wrong:

• A: Discounts do not reduce furniture supply to shift left.
• C: Discounts fail to shift furniture supply left.
• D: Harvests reduce, not increase, fruit supply.

Final answer: B