Correct Answer: (b) India
Solution:Arhar is an important legume crop and protein-rich food which is primarily consumed as dal in India. It is predominantly a crop of tropical areas mainly cultivated in semi arid regions of India. It is commonly intercropped with a wide range of crops. In India, it was estimated that 80-90% of the pigeonpea were intercropped. The important diseases of Pigeon pea are Wilt, Sterility mosaic disease, Phytophthora blight, Alternaria blight and Powdery mildew etc. The Pigeonpea's long growth cycle and sensitivity to day length have hindered breeding efforts, with only about 250 varieties released globally over six decades. It has low glycaemic index and is rich in thiamine, riboflavin, niacin, vitamin B-6, folate, vitamin A, calcium, zinc, iron, magnesium and phosphorus. Major Pigeon pea producing states: Uttar Pradesh, Madhya Pradesh, West Bengal, Bihar and Jharkhand.