Answer:
The detail from the text that best shows a parallel to authoritarian governments is the abolishment of a song from the rebellion.
Step-by-step explanation:
The detail that shows a parallel to authoritarian governments is the abolishment of a song from the rebellion. This is because one common tactic used by authoritarian governments is to control or censor the media and the arts, including music, in order to control the narrative and prevent dissent or opposition. In the case of Animal Farm, the abolition of "Beasts of England" is a way for the pigs to control the animals' thoughts and memories of the rebellion, and to prevent them from questioning the current state of the farm under the pigs' leadership. This parallels the way authoritarian governments often suppress or censor music, literature, and other forms of expression that do not conform to their ideology or agenda.