Zack' s Coffeehouse schedules free poetry readings almost every Wednesday. Zack' s offers half-priced coffee all day on every day that a poetry reading is scheduled. Which one of the following can be properly inferred from the information above? ["Zack's offers half-priced coffee all day on most if not all Wednesdays.", "On some Wednesdays Zack's does not offer half-priced coffee all day.", "Free poetry readings are scheduled on almost every day that Zack's offers half-priced coffee all day.", "Most free poetry readings given at Zack's are scheduled for Wednesdays."]