In vacuum all freely falling objects:
In vacuum all falling objects will have same acceleration.
The constant acceleration is due to gravitational force of earth and is known as acceleration due to gravity given by:
Where,
G = Gravitational Constant = Nm2kg-2
M = Mass of Earth
R = Radius of Earth
From above, we see that all variables in the equation are constant. Thus g dosen’t depend on any other factors, and hence is constant.
Hence, option C is correct.