Read the argument below.
"The town should close the downtown parking garage. City staff counted cars on four Saturdays and four Sundays last month, and the garage was never more than one-third full."
The argument depends on which unstated assumption?
Show answer & explanation
Answer: A
Weekend counts accurately reflect how much the garage is used overall.: Correct. The evidence covers only weekends; the conclusion holds only if weekday demand is no higher than weekend demand.
The garage was built more recently than other public lots downtown.: The garage's age plays no role in the reasoning, so the argument does not rely on it.
Parking fees at the garage are higher than fees at nearby street meters.: Fees are never mentioned; the argument is based only on how full the garage was.
City staff will be reassigned to other duties if the garage is closed.: What happens to staff is a consequence, not a premise the argument needs in order to reach its conclusion.
To find an assumption, look for the gap between the evidence (weekends only) and the conclusion (close it entirely).