Answer: (a) A-II, B-IV, C-I, D-III

• Kailash Satyarthi was awarded the Nobel Peace Prize (II) in 2014 for his work against child labor.
• Abhijit Banerjee was awarded the Nobel Prize in Economics (IV) in 2019 for his experimental approach to alleviating global poverty.
• Venkatraman Ramakrishnan was awarded the Nobel Prize in Chemistry (I) in 2009 for his studies of the structure and function of the ribosome.
• Subrahmanyan Chandrasekhar was awarded the Nobel Prize in Physics (III) in 1983 for his theoretical studies of the physical processes of importance to the structure and evolution of the stars.