a laser light with holograph. a seismograph. an electron microscope. a stereoscope.
I gave my students this multiple choice question: A scientist needs to take a picture of the well-ordered arrangements of the atoms and molecules within a substance. Which of the following instruments would be best for the scientist to use?

Only one answer is correct among these 4 choices:
- a laser light with holograph.
- a seismograph.
- an electron microscope.
- a stereoscope.

Could you tell me which one is correct?

an electron microscope.