D would be the best answer. The larger hammer would have a greater mass indeed. So it would creat more friction between the nail and the hammer creating more force being applied to the nail. Therefore the nail being able to go into the wood.
The answer is: Runners allowed villages and cities throughout the empire to communicate quick with rulers far away.
Hope this helps!:)
The most likely answer is B) <span>Americans became more determined to free countries from communism. </span>
