This question has options. Answer the question about text:

My ( paternal ) grandmother treated us to dinner . Theresa came over Sunday and went to church and dinner with us . Then she came back to our house so I could help her with her research paper . We were up until midnight working on that thing .

Why were we up so late working on what we were working on ?
Select from:
+ The dinner needed to decorated before being eaten .
+ I wanted to help her finish her research paper .
+ The dinner needed to be cooked no matter how long it takes .
+ None of the above choices .
I wanted to help her finish her research paper .