Correct Answer  Option 4 : All of the above will have same acceleration.
CONCEPT:

Gravitational acceleration: An acceleration that an object receives due to the force of gravity acting on it.

Gravitational Acceleration: It is calculated by using the formula
\(g = {GM\over R^2}\)
where g is the gravitational acceleration, G is the gravitational constant, M is the mass of the earth and R is the radius of the earth.
EXPLANATION:
 When an object freely falls in a vacuum at the earth's surface, it falls with gravitational acceleration g.
The gravitational acceleration \(g = {GM\over R^2}\) of any object depends on the mass of the earth M, the radius of the earth R.
 It does not depend on the mass of the object or the size of the object.
 So all objects will have the same acceleration.
 Hence the correct answer is option 4.