If the weight were attached to a rod instead of a spring, then the seismograph would not function. Thus, the correct answer is E.
Seismograph are refers as instruments used to measure the intensity of the earthquake by identifying the epicentre of it.
A pen connected to the weight rests its point on a drum that can revolve. When the drum gently rotates, the pen draws a straight line on paper that has been tightly wound around it.
A seismograph consists of a heavy weight attached to a frame by a spring or wire. When this spring is replaced by rod, then in this case the seismography will not work.
Therefore, option E the seismograph would not function is the appropriate answer.
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