In the center of the Milky Way galaxy is a
a
Black hole
b
Neutron star
C
Supernova
d Nebula

A.Black hole

Explanation:

The Galactic Center is the rotational center of the Milky Way galaxy'; it is a supermassive black hole of 4.100 ± 0.034 million solar masses which powers the compact radio source Sagittarius A*

the electric field is a “force field” around a charged object that illustrates the direction the electric force would push an imaginary 

massxgravity x heght=weightxheight= pe

4900=490xh

h=10