What Is the Gravitational Field Strength on the Surface of the Earth

Multiple Choice

What is the gravitational field strength on the surface of the Earth? $\left(\mathrm{G}=6.67 \times 10-11 \mathrm{~N} \mathrm{~m}^{2} / \mathrm{kg}^{2}\right.$ , the mass of the Earth is $5.98 \times 10^{24} \mathrm{~kg}$ , and the radius of the Earth is $6.38 \times 10^{6} \mathrm{~m}$ .)

A) $10.1 \mathrm{~N} / \mathrm{kg}$ .
B) $6.20 \mathrm{~N} / \mathrm{kg}$ .
C) $20.3 \mathrm{~N} / \mathrm{kg}$ .
D) $9.80 \mathrm{~N} / \mathrm{kg}$ .
E) $3.40 \mathrm{~N} / \mathrm{kg}$ .