Option 1 -> Satyendra Nath Bose was a physicist known for quantum mechanics and Bose-Einstein statistics, not wireless communication.
Option 2 -> S.S. Abhyankar was a renowned mathematician specializing in algebraic geometry, not radio science.
Option 3 -> Prafulla Chandra Ray was a chemist known as the father of Indian chemistry, not related to radio science.
Option 4 -> Jagdish Chandra Bose pioneered research in radio and microwave optics, demonstrating wireless communication in 1895.
Hence, Jagdish Chandra Bose -> He demonstrated wireless signaling and remote bell-ringing using electromagnetic waves before Marconi's work, and made groundbreaking contributions to radio science and millimeter-wave research, earning him the title 'father of Radio Science' -> correct