Task: Question Answering
Input (English): Question: The mass of 1 cubic meter of a substance is 400 kilograms under certain conditions. What is the volume, in cubic centimeters, of 1 gram of this substance under these conditions? (1 kilogram = 1,000 grams and 1 cubic meter = 1,000,000 cubic centimeters)

 Option A: 0.8

 Option B: 1.25

 Option C: 8.0

 Option D: 2.5

 Option E: 80
Output (English): Option D