[单选题]
The acceleration of gravi.f:f h uwic4*mty on the Moon is one-sixth what it is4ae 7f ; ur)zyula..ma on Earth. An obe ;)z 4aum.uy.laar7fject of mass 72 kg is taken to the Moon. What is its mass there?
A. $12 \; kg$
B. $72 \; kg$
C. $72 \; N$
D. $12 \; N$
