In the 1990s, DVDs replaced audiocassettes and floppy disks as the storage media of choice for music and computers. In today's world of streaming digital media and the cloud, at which stage of the product life cycle is the DVD now?a. market introduction b. market immaturity c. market extinction d. sales decline

Martha is one producer in the perfectly competitive jelly industry. last year, martha and all of her competitors found themselves earning economic profits. if there is free entry and exit, what do you expect will happen to the amount of output martha will produce and the amount of profit she will have? martha's output and profits will both decrease. martha's output will decrease, but her profits will increase. martha's output and profits will both increase. martha's output will increase but her profits will decrease.