Having greater or less electrons possessed by an object. Can attract or repel. A. proton
B. magnetism
C. charge
D. magnet

A. Proton

Explanation:

Given that an electron has a net negative charge equal in magnitude to the charge of a proton (1.602 × 10⁻¹⁹) but having an opposite (negative) sign to that of a proton, and given that like charges (negative to negative) repel and unlike charges attract, an object having;

Greater electron will be negatively charged relative to the other object, to which it is compare, which is a proton will attract the (positively charged) proton

Lesser negative charge compared to the proton; therefore, both objects will be positive, and they will repel each other

We therefore have;

Having greater or less electrons possessed by an object. Can attract or repel a proton

The correct option is option A. proton

the answer is to check all of them! they all apply well at least i think so!

real, smaller and upside-down.   so the answer should be b.