His brother had a cookout , and while I was nice to talk with everybody , the flies and mosquites were fierce . We left around 9:30 pm and then went back to the rectory to watch the movie Bella , which was excellent ! ! ! ! If you have n't seen it , I would recommend it .

Options:
[A]. The flies and mosquitos were fierce at the cookout because the cookout was filled with food for them .;
[B]. None of the above choices .;
[C]. The flies and mosquitos were fierce at the cookout because the smoke and fire from food cooking got their attention .;
[D]. The flies and mosquitos were fierce at the cookout because the smell of food from the cookout attracated them .;
Q: Why were the flies and mosquitos fierce at the cookout ?
[A].