Task: Question Answering
Input (English): Problem: an art gallery has only paintings and sculptures. currently, 1 / 3 of the pieces of art are displayed, and 1 / 6 of the pieces on display are sculptures. if 1 / 3 of the pieces not on display are paintings, and 800 sculptures are not on display, how many pieces of art does the gallery have ?
Options: a. 360, b. 1800, c. 540, d. 640, e. 720
Output (English): b