Step 1: Understand the context of Benjy’s age.
Benjy, a character from *The Sound and the Fury* by William Faulkner, left school at the age of thirteen. This is part of his backstory, which reflects his challenges growing up.
Step 2: Analyze the options.
- (A) twelve: Incorrect. Benjy did not leave school at twelve.
- (B) thirteen: Correct. Benjy left school at the age of thirteen.
- (C) fourteen: Incorrect. This is not the age at which Benjy left school.
- (D) fifteen: Incorrect. Benjy left school earlier than fifteen.
Step 3: Conclusion.
Benjy left school at the age of thirteen.