Answer:
(D) To suggest to readers that there were people in America who wanted to see Fermi's experiments fail
Enrico Fermi's great interest in physics was said to be the outcome of a family tragedy. When Enrico was 14, his beloved older brother, Giulio, died suddenly. To sympathise him, his parents supported his studies. He came across a couple of physics books written a half-century earlier and was completely enthralled. During his teens, he and friends carried physics experiments for fun, including testing the density of Rome's water supply.
