human
Question: Red-clay bricks have a density of approximately 2000 kg/m^3. Air has a density of 1 kg/m^3. Which of the following has the lowest mass?

Choices:
A) 2 m^3 of bricks
B) 4 m^3 of bricks
C) 6000 m^3 of air
D) 10,000 m^3 of air
gpt
The correct answer is 0: 2 m^3 of bricks.