Explanation:

- Option 1: is relevant.

- This option suggests that the act being part of a series of similar occurrences is pertinent to determining if it was accidental or intentional.

- Understanding patterns can help conclude the person's intentions or knowledge.

- Correct Answer

- Option 2: is irrelevant.

- This option argues that the history of similar acts is not significant in ascertaining intent or accident.

- It disregards the relevance of past behavior in judging current actions.

- Option 3: Is material.

- "Material" implies importance or significance in context.

- Similar to relevance, but not directly tied to intent or accident in options given.

- Option 4: Is immaterial.

- This means that the act’s history doesn’t affect understanding intent or accident.

- Contradicts the idea that patterns can inform on behavior.