The correct order of the sentences is C. 3, 2, 4, 1.
The correct order of the sentences to form a logical sequence is C. 3, 2, 4, 1.
The first sentence mentions the flashback event from the character's childhood where the stepfather locked him out of the house (sentence 3). This event supports the idea mentioned in sentence 2 that the author gives the character a victim attitude.
The writer then explains in sentence 4 that this victim attitude stems from the character's childhood, where he was bullied both at home and in school. Finally, in sentence 1, the idea of the flashback into the character's childhood is described to further support the main idea of the essay.