Correct option is B
A-II, B-III, C-I, D-IV. This indicates that Pranab Bardhan is associated with the concept of fragmentation in the coalition dominant interests, Subrata Mitra and Jivanta Schotlli with the second dominant party system, Rajni Kothari with parties of pressure, and Kanchan Chandra with ethnic parties. Pranab Bardhan is widely recognized for his contributions to the understanding of the political economy and its implications on coalition formations and fragmentations. Subrata Mitra and Jivanta Schotlli have made significant contributions to the study of India's political system, specifically in the context of the second dominant party system. Rajni Kothari is a renowned political scientist known for his work on the role of parties as pressure groups within democratic systems. Finally, Kanchan Chandra has contributed to the understanding of ethnic parties and their roles in ethnically diverse societies.