Big-budget movies often gross two or three times the cost of their production and marketing. However, most of the movie industry' s total revenue comes from low-budget movies. Which one of the following, if true, most helps to resolve the apparent discrepancy above? ["The movie industry's revenues, when adjusted for inflation, have declined sharply in the last 30 years.", 'Big-budget movies need to sell many more tickets than do low-budget movies, just to recoup their production costs.', 'There are many more low-budget movies produced than there are big- and mediumbudget movies.', 'Big-budget movies, because of their elaborate special effects, cost more in insurance premiums than low-budget movies do.']