Answer: Force
Explanation: Force is defined as a push or pull acting on an object
The answer is b after I finish my test ill give you the anwsers
Gravitational force is determined by mass
Answer: Option B
<u>Explanation:</u>
According to Universal law of gravity, the gravitational force is directly proportional to the product of the masses of the objects and inversely proportional to the square of the distance between the objects.

Where,
G – gravitational constant = 
= masses of two objects
r – distance between the objects
So, as per this law, the gravitational force is found by mass.
Maybe number 4 could help.