Within a Certain Type of Star Called a Neutron Star

Multiple Choice

Within a certain type of star called a neutron star, the material at the center has a mass density of 1.0 × 10¹⁸ kg/m³. If a tiny sphere of this material of radius 1.0 × 10^-5 m were somehow transported to the surface of the earth, what would be the weight of this sphere?

A) 1000 N
B) 4200 N
C) 4.1 × 10⁴ N
D) 7.0 × 10⁴ N
E) 3.8 × 10⁹ N