Answer : The hammer having mass of 16 pounds will move the shortest distance.
Explanation :
According to Newton's second law :
F = m a
Where
m is the mass of an object
a is the acceleration produced
Also,

And

d is the distance traveled by an object.
Force becomes :

or

Distance covered is inversely proportional to the mass of hammers.
So, the hammer having maximum mass will move the shortest distance.
Hence, the correct option is (D) " 16 pounds ".