Knowing That $g = 9.80 \frac { \mathrm { m } } { \mathrm { s } ^ { 2 } }$

Multiple Choice

Knowing that $g = 9.80 \frac { \mathrm { m } } { \mathrm { s } ^ { 2 } }$ at sea level and that R_E = 6.37 * 10⁶ m,we find that the value of g in $\frac { \mathrm { m } } { \mathrm { s } ^ { 2 } }$ at a distance R_E from the surface of the Earth is

A) 1.23.
B) 2.45.
C) 4.90.
D) 7.35.
E) 9.80.