hearify is an online music streaming service. they want to introduce a new feature that automatically generates 60-minute long playlists of popular music in different genres. they want each playlist to be exactly 60 minutes long and to include the most highly rated songs possible. they develop the feature but discover that it takes a long time for the computer to consider all the possible combinations of songs, and that extra time costs them money. can the run time of the feature be improved? choose 1 answer: