Concept:Kharif crops are sown at the start of the monsoon season and harvested after the rains end.Explanation:Kharif crops are sown when the south‑west monsoon begins, usually in June. They grow during the rainy season (June to September). Harvesting takes place after the monsoon ends, in early October. Hence, the total duration of kharif crops is from June to October.Answer:A. June to October