Task: Question Answering
Input (English): Passage: It was a chilly winter night and my boyfriend and I decided that we wanted to make soup . I thought that making a loaded baked potato soup would be good for a cold night . I went to the refrigerator to look for the ingredients we would need .  I pulled out some potatoes I had already boiled , carrots , heavy cream , milk , sour cream , chives , bacon bits , butter , and flour .  Once my roux was done , I added the heavy cream and milk to the pan . I let the heavy cream and milk mixture come to a simmer and then I added sour cream and cheddar cheese . After that , I added my boiled potatoes and the chopped up vegetables .  I poured a bowl of soup for both me and my boyfriend and topped them with sour cream . We ate our soup and enjoyed what we made . Question: What did they use to top the soup after it was thickened? Option1: sour cream Option2: chives
Output (English): sour cream