If a farmer must sell all of their daily harvest of vegetables before they spoil for whatever price they are offered, once the vegetables are picked, the farmer's price elasticity of supply for fresh vegetables is a. unable to be determined from this information b. infinite c. zero d. one

In this scenario, the farmer **must** sell all of their daily harvest of vegetables before they spoil, regardless of the price offered. This means that the quantity of vegetables supplied is **fixed** and does not change with variations in price. **Price Elasticity of Supply (PES)** measures how much the quantity supplied of a good responds to a change in the price of that good. It's calculated as: \[ \text{PES} = \frac{\% \text{ Change in Quantity Supplied}}{\% \text{ Change in Price}} \] Given that the farmer's quantity supplied remains **constant** regardless of the price, the numerator (\% Change in Quantity Supplied) is **zero**. Therefore: \[ \text{PES} = \frac{0}{\% \text{ Change in Price}} = 0 \] A PES of **zero** indicates **perfectly inelastic supply**, meaning the quantity supplied does not respond at all to changes in price. **Answer:** c. zero