Task: Text Completion
Input (English): An asian man is standing by the keyboard, he is wearing a red shirt with black top inside. two people, one girl and one boy <sep> (A) are sitting behind the keyboard, playing. (B) , are playing loudly on the keyboard together. (C) are sitting, the girl is wearing a white top, while the boy is wearing a white stripe sweater. (D) are dancing and the keyboard man behind him thumbs the keyboard.
Output (English): C