Once upon a time, it was time for a little girl to eat her breakfast before going to school.  It doesn't really matter what the little girl's name was, but we'll call her Jenny.  The first thing Jenny needed to do to get her breakfast ready was to make orange juice.  Jenny didn't want to go to school, much less make orange juice, so Jenny told her mommy that she had forgotten how to make orange juice.  Jenny's mommy -- we'll call her Mommy -- was not stupid and did not believe Jenny but Mommy decided that this would be a great learning opportunity for both of them so she went along with it.  Mommy took an orange that she had bought at the market just the day before.  Mommy took a sharp knife and very carefully cut the orange into two equal halves.  Then, she gently removed the orange peels from each half.  After that, she opened the electric juicer sitting on the kitchen counter and tossed in both halves of the orange before closing the lid and starting the juicer.  Seconds later, fresh orange juice poured into the little jar at the bottom of the device.  When the machine was finished, Mommy handed the jar to Jenny and said, "Crisis averted.  Go upstairs and get ready for school."  Jenny pouted but drank the fresh orange juice before sullenly going upstairs to get ready for another day of learning.  Jenny was seventeen years old. 
Question: Who cut the oranges?
Jenny's Mommy