Passage Summary: Taxi drivers quit for the day as soon as they make a certain amount of money. Because they get more customers on busy days, they reach that goal faster and go home early.

Reasoning: Drivers stop once they hit a specific dollar amount; busy days reach that amount faster than slow days.

Analysis: Since this is a 'Must be False' question, we are looking for a statement that is impossible given the rules provided. The stimulus establishes a rigid behavior: drivers stop exactly when they hit a target. This creates an inverse relationship between demand and hours worked. An answer choice that suggests these drivers work longer hours when demand is high, or that they ignore their income targets to keep working during busy shifts, would directly contradict the established facts.