The arena was filled with staff , and they were pretty helpful too . There were no long lines at concessions or even in the bathrooms . As for the game . It started with a roaring ovation for Cujo .
According to the above context, choose the best option to answer the following question.
Question: Why were the arena 's staff helpful ?
Options:
- Because there were no long lines in the bathrooms .
 - None of the above choices .
 - Because there were no long lines at concessions .
 - Because it 's their job to be helpful .


Because it 's their job to be helpful .