Explanation:

- Paddy is a versatile crop greatly suited to the climate in Uttar Pradesh. It thrives in both Kharif (monsoon) and Rabi (winter) seasons. In some areas, due to adequate irrigation facilities, it can also be grown during the summer season.

- Wheat is primarily a Rabi crop. It is sown in the winter season and harvested in summer. It is not typically grown in the Kharif or summer seasons.

- Sunflower can be grown in multiple seasons, but it is not as adaptable as paddy across all three seasons in UP’s conditions.

- Groundnut is mainly a Kharif crop in Uttar Pradesh and is not grown in all three seasons.

Option:1- Paddy is indeed the correct answer.

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