The correct option is Uttar Pradesh and Bihar.
Explanation
India is a significant producer of horticultural crops, with specific regions specializing in distinct fruits based on agro-climatic conditions.
- Lichi Production: Bihar is the leading producer of Lichi in India. The Muzaffarpur district is globally renowned for the "Shahi Lichi," which holds a Geographical Indication (GI) tag due to its unique quality and flavor.
- Guava Production: Uttar Pradesh is a major producer of Guava. The region around Allahabad (Prayagraj) is famous for the "Allahabadi Safeda" variety, which is widely cultivated and exported.
While other states also produce these fruits to varying degrees, the specific combination of Bihar for Lichi and Uttar Pradesh for Guava represents the most prominent centers of production for these crops in India.
Key Takeaway: Bihar dominates India's Lichi production (specifically the Muzaffarpur belt), while Uttar Pradesh is a primary hub for Guava cultivation (notably the Allahabad belt).