17. electrical current is the flow of ___.\na. quarks\nb. neutrons\nc. protons\nd. electrons

Brief Explanations:

Electrical current is the flow of electric - charge carriers. In most conductors, these charge carriers are electrons. Quarks are sub - atomic particles that make up protons and neutrons. Neutrons are neutral particles in an atom's nucleus and do not contribute to electric current. Protons are positively charged particles in the nucleus and are not free to move in the way that electrons are in conductors to form a current.

Answer:

D. electrons