Step 1: Analyze the preposition usage.
The correct preposition is "for," which indicates that he died in service or due to his society. "For" expresses a cause or a reason in this context. Step 2: Analyze each option.
- (A) at: Incorrect. "At" indicates location, not the cause of death.
- (B) of: Incorrect. "Of" could be used for a cause, but it’s typically more specific (e.g., "He died of cancer").
- (C) for: Correct. "For" is the right preposition when expressing cause or purpose.
- (D) from: Incorrect. "From" is used for origins, not causes in this context. Step 3: Conclusion.
The correct sentence is "He died for his society."