Identify the person from the description given below.
a. Gangadhar Gadgil, the scholar of Economics considered him as "The Architect of Modern India".
b. The economic nationalism of Dadabhai Naoroji and Justice Ranade was based on his thoughts.
c. He had realized the importance of agriculture in Indian life.
1. Nana Shankar Sheth
2. Dr. Bhau Daji Lad
3. Bhaskar Tarkhadkar
4. Dadoba Pandurang