Match List-I with List-II and select the correct answer from the code given below the lists. List- List- (Plant disease) (Factor) I II A Citrus Cankers 1 Insect Red rot disease Deficiency of B 2 sugar cane oxygen Krishnakant dis‐ C 3 Bacteria ease of potato Sahu disease of D 4 Fungus wheat Code: A) 4 1 3 2 B) 1 3 4 2 C) 3 4 2 1 D) 1 2 3 4

- Citrus Canker is caused by the bacterium Xanthomonas axonopodis pv. citri. So, A matches with 3 (Bacteria). - Red rot disease of sugarcane is caused by the fungus Colletotrichum falcatum. So, B matches with 4 (Fungus). - Krishnakant disease of potato is another name for Black heart of potato, which is a non-parasitic disorder caused by the deficiency of oxygen (anoxia) in the tubers, often due to poor ventilation during storage. So, C matches with 2 (Deficiency of oxygen). - Sahu disease of wheat, also known as Molya disease, is caused by cereal cyst nematodes (Heterodera avenae). Among the given options, 'Insect' (1) is the closest category, possibly used loosely to represent animal pests, although nematodes are not insects. Given the definite matches for A, B, and C, option C (3 4 2 1) is the only viable choice, assuming 'Insect' represents the nematode cause for D.