गेल्या दोन दशकात, भारतातील अन्नधान्याच्या उत्पादनाची वाढ मंदावली आहे कारण
(a) अन्नधान्य पिकाखालील क्षेत्रात घट होवून इतर पिकाखालील क्षेत्रात वाढ झाली
(b) उच्च उत्पादन क्षमतेच्या पट्यामध्ये नैसर्गीक संसाधनाच्या ऱ्हासामुळे शाश्वतीकरणामध्ये उदभवणारे प्रश्न
(c) सन 2001-02, 2002-03 आणि 2004-05 या वर्षामध्ये पडलेला दुष्काळ
(d) अन्नधान्य निर्यातीवर लादलेले निर्बंध
पर्यायी उत्तरे :

The correct answer is Option D (All the above statements are correct).

Key Points:
• Deceleration in Indian Foodgrain Output: India experienced a notable structural fatigue in foodgrain production growth during the post-reform decades:
• Crop Diversification: Cropping shifts toward high-value commercial cash crops, fruits, and vegetables reduced net acreage under cereals (Statement a).
• Soil & Water Fatigue in Green Revolution Belts: Groundwater depletion, soil salinization, and micronutrient imbalances in Punjab, Haryana, and Western UP stagnated yields (Statement b).
• Climate Shocks: Consecutive meteorological droughts in 2001-02, 2002-03, and 2004-05 severely reduced total output (Statement c).
• Trade Policy Controls: Frequent export bans and stocking restrictions suppressed farmgate price incentives (Statement d).
• Official Key: All statements validated in official key (Option 4).
• Key Takeaway: Foodgrain production growth decelerated due to crop diversification, ecological resource fatigue, recurrent droughts, and export bans.