Final answer:
The question is an English comprehension question asking for a specific detail from a story or scenario. Without sufficient context, any of the options could be correct depending on the circumstances in the story. The reference to microscopes appears irrelevant for this particular question.
Step-by-step explanation:
The question, How did the policeman see the stranger's face?, pertains to understanding the context and details within a given scenario or story. It does not tie to the provided reference information about microscopes, which are scientific equipment related to the subject of Biology or Chemistry, not English language comprehension. The given options for the question are varied and would depend on the context provided in the story, i.e., the policeman could have seen the stranger's face by using binoculars from a distance, with the help of a flashlight, through a security camera, or in broad daylight without any aid.
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