Answer:
CDB,
Explanation:
C, due to students without previously aggressive or submissive behaviors developed these traits.
D, Deindivuation refers to losing one's sense of self .
B, the prison ID numbers didn't give prisoners their names.
In the first sentence, the "he" is a nominative as it is a subject.
In the second sentence it is an object as the form "me" is actually "I", but "i" is a nominative form and "me" is an objective form.
In the third sentence "Us" is also used in objective form as "us" is an object of an action by "my sister".
