Answer: I hope the file helps you out :)
Gravitational force pulls on each unit mass with a constant force resulting in a constant acceleration (an increase in speed of about 10 metres per second every second). ... This is said to be the 'weight' of the object (i.e. the downward force it exerts because gravitational force is acting on it).
Please give brainliest.

The fundamental unit among them (not derived) is :
I believe that D is the answer to your question, even though this is a complicated one.
Electrons are Negative.
Protons are Positive.
Neutrons are No charge.
Molecules are Made of atoms.