Which economist's ideas had a strong influence on the agricultural and industrial focus of the Second Five Year Plan?

Correct option is A

The correct answer is (a) P. C. Mahalanobis.
• Second Five Year Plan period: 1956–1961
• Development model: Mahalanobis Model
• Focus on heavy industries
• Strategy: Capital goods-led growth
Information Booster:
• Emphasis on public sector expansion
• Priority to steel and machine-building
• Reduced focus on agriculture compared to First Plan
• Mahalanobis headed CSO
Additional Information:
• First Plan focused on agriculture
• Third Plan aimed at self-reliance
• Mahalanobis known as architect of Indian planning