Explanation:

The Alphonso mango, renowned for its rich flavor, aroma, and creamy texture, is predominantly grown in the Konkan region of Maharashtra, India. It is one of the most expensive and sought-after varieties of mango globally. While mangoes are cultivated across many Indian states, the Alphonso variety is most famously associated with Maharashtra. Options A, B, and C (Punjab, Bihar, and West Bengal) are significant agricultural states but are not the primary regions for Alphonso mango cultivation; they are known for other mango varieties or different crops.