A particular power source releases kinetic energy that is used to move giant magnets. These giant magnets are rotated to create electron flow. This
process describes which power source?
A. An electric generator
B. An electric motor
C. An electric reactor
D. Electromagnetism

50.23 i believe is correct but don't quote me on that.

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.

im doing test rn im going with 2 but ill give answer if itss wrong,   : )