Today I went to the " Yamaka My Weekend " festival . While I was there , Casey and I ran into somebody we knew from junior high . Her name is Sarah .
Why is the narrator feeling nostalgic after going to the concert ?
Pick the best answer from the following options:
- None of the above choices .
 - The narrator saw an old friend .
 - The narrator saw an old teammate there .
 - The narrator saw an old teacher there .


The narrator saw an old friend .