When a new restaurant, Martin' s Cafe, opened in Riverville last year, many people predicted that business at the Wildflower Inn, Riverville' s only other restaurant, would suffer from the competition. Surprisingly, however, in the year since Martin' s Cafe opened, the average number of meals per night served at the Wildflower Inn has increased significantly. Which of the following, if true, most helps to explain the increase? ["The profit per meal is higher, on average, for meals served at Martin's Cafe than for those served at the Wildflower Inn.", "Most of the customers of Martin's Cafe had never dined in Riverville before this restaurant opened, and on most days Martin's Cafe attracts more customers than it can seat.", "A significant proportion of the staff at Martin's Cafe are people who formerly worked at the Wildflower Inn and were hired away by the owner of Martin's Cafe.", "The Wildflower Inn is not open on Sundays, and ttherefore Riverville residents who choose to dine out on that day must either eat at Martin's Cafe or go to neighboring towns to eat."]