The narrator 's motherThe narrator 's grandmotherThe narrator 's AuntNone of the above choices .
Who does Nonna most likely refer to ?
Dear Nonna , I missed you on Friday . Mom got a lot of work done in the morning before you left , but then she had to do a silly conference call , and I woke up early from my nap and wanted to sing and play . It 's no fun when Mom has to work !