I think that there is an error in the answer options.
Rather than farmer:microscope, it should be scientist:microscope.
A librarian is a person who handles tangible objects of the job.
Likewise, a scientist is a person who handles the tangible object of a microscope.
Answer: B) Scientist: Microscope
Technology has gotten much better since the 1920s
Giving inanimate objects life like things . such as saying "the tree spoke to me"
U still need help with your question