Which sentence is correct?

The answer "He died by accident" is correct because it uses the phrase "by accident" to indicate that the death occurred unintentionally. This phrase is commonly used to describe situations where an event happens unexpectedly or accidentally.

Let's break down the other options:

    
• He died in the accident: This sentence is also correct but refers specifically to him being involved in an accident, implying a specific incident.
    
• He died from accident: This is incorrect because the phrase should be "from an accident" to be grammatically correct.
    
• None: This option is incorrect since "He died by accident" is a valid sentence.

Overall, while "He died by accident" is correct and denotes an unintentional event, "He died in the accident" would also be acceptable in a different context.

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