Context: We all sang " Happy Birthday " as loud as possible and then came the present opening . Naturally my mother got a little over whelmed but it all went very very well . It was a good day . Things have been getting better day by day , even though some days things seem hard and frustrating . I am unfortunately still very tired and stupidly agreed to some temp work for the next three weeks along with my Blockbuster hours and full time care of my mother .

Question: Whose birthday are we celebrating ?
Options:
0. None of the above choices .
1. We are celebrating my own birthday .
2. We are celebrating my sister 's birthday .
3. We are celebrating my mother 's birthday .
Answer: 3