Explanation:

- Option 1: Weddings

- Norms definitely operate at weddings. These events are full of traditions and customs that dictate behavior, attire, and even roles. People generally follow these cultural norms to ensure proper conduct and respect for the occasion.

- Option 2: Tiffin sharing

- Norms are present in tiffin sharing, typically involving informal rules around sharing food. These unwritten rules often guide behavior about who you share with, what you offer, and when it's appropriate to share or decline.

- Option 3: Street fights

- Street fights generally do not follow societal norms. Participants often disregard rules of behavior, and chaos tends to prevail. Norms around conflict resolution and communication are usually ignored in such situations.

- Correct Answer

- Option 4: None of the above

- This suggests that norms operate in all situations listed, which is not accurate since street fights generally defy societal norms.

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