[B]:
Basically a bandwagon fallacy is "If many believe so, it is so".
It is False that persuasive writing relies on fallacies to make an argument. A Persuasive writing relies on facts that are supported by clear examples.
Oh! These are different because, one is about justice while on the other hand, 12 Angry Men is all about 12 white men who want to get a black boy killed.