The correct answer is: b) Raghunath Mohapatra.
Raghunath Mohapatra (1928-2004) was an eminent Odia sculptor who is best known for crafting the iconic emblem of India (the Lion Capital of Ashoka). He was born in the village of Raghunathpur in the Ganjam district of Odisha. He studied at the Government College of Art and Craft in Cuttack and the Visva-Bharati University in Shantiniketan. He was awarded the Padma Shri in 1972 and the Padma Vibhushan in 1991.
The Lion Capital of Ashoka is a sculpture that was originally commissioned by the Mauryan emperor Ashoka in the 3rd century BCE. It is a four-headed lion standing on a circular abacus. The abacus is inscribed with the Ashoka Chakra, a wheel with 24 spokes. The Lion Capital of Ashoka is now the national emblem of India.
The other options are incorrect.
a) Sudarshan Sahoo is a contemporary Odia sculptor who is known for his work in bronze and stone.
c) Dinanath Bhargava was an Indian sculptor who is best known for his work in marble.
d) Sadashiv Rath Sharma was an Indian sculptor who is best known for his work in terracotta.