The marginal utility most obviously diminished whenever: (1) Eric sang six songs rather than only one on karaoke night at local club. (2) Molly’s piano lessons absorbed 20 hrs last week she could have used up for studying. (3) Karen built 12 boxes however only 9 are required for her present science project. (4) Dash lied to the Amanda 22 times prior to she finally caught him on his 23rd lie. (5) Tom enjoyed his third piece of cherry pie previous night less than his second.
Choose the right answer from the above options.