To determine which object would reach 100 feet in the least amount of time, we typically need more information about each object's initial velocity, acceleration, and any other forces acting on them (like air resistance).
If we assume these objects are in free fall (under the influence of gravity with no other forces acting on them), they would all reach 100 feet at the same time if released from the same height, as all objects fall at the same rate due to gravity regardless of their mass.
However, if these objects are launched or thrown upward with different initial velocities or accelerations, we would need to analyze the equations of motion for each object to determine which reaches 100 feet first.
If you can provide additional details about the objects or their velocities, I would be able to assist you more specifically. Based on the given options, if there's no additional information, the likely answer is "They would all reach 100 feet at the same time" assuming they are in a vacuum without any other forces acting on them.