When transferring electric charge, an object becomes positive when it . A.
gains protons

B.
loses protons

C.
loses electrons

D.
gains electrons

C.

Explanation:

Swapping electrical charges will always have to do with electrons, so A & B can be eliminated easily.

Electrons will be the ones transferring over to the new object. Electrons are naturally negatively charged, so anything that gains electrons will become negatively charged themselves. Whereas if they lose electrons, they will become positively charged.

It's worth noting that protons and electrons have the same exact numerical charge, but they are both opposites. Electrons are negative, and protons are positive. Neutrons on the other hand have no charge (hence the "neutral" root in its name).

a and c

c is 100% but i am confused in a