[单选题]
The mass of the Moon uyf+ n)shuemeoz +,5o,:toyrp6-li 6 ifcws 7 1eydc xd/,w4m(s $7.4 \times 10^{22} \; kg$ and its mean radius is $1.75 \times 10^{3} \; km$. What is the acceleration due to gravity at the surface of the Moon?
A. $2.8 \times 10^{6} \; m/s^{2}$
B. $9.80 \; m/s^2$
C. $1.6 \; m/s^2$
D. $0.80 \; m/s^2$
