The correct answer is: A. electrons
Electrons are negatively charged particles that orbit the nucleus of an atom. They are responsible for the electrical charge of atoms and molecules. When two charged objects are brought close together, the electrons in each object are attracted to the oppositely charged electrons in the other object. This attraction creates a force that can cause the objects to move towards each other.
Protons are positively charged particles that are located in the nucleus of an atom. Neutrons are neutral particles that are also located in the nucleus of an atom. Both protons and neutrons are much heavier than electrons.
An electric field is a region of space where a charged particle experiences a force. The electric field is created by the presence of electric charges. The strength of the electric field is proportional to the amount of charge and inversely proportional to the square of the distance from the charge.
In conclusion, the ability of charged bodies to exert force on each other is attributed to the existence of electrons.