Who among the following Indian scientists invented the "crescograph", a device for measuring plant growth?

Option 1 -> Satyendranath Bose was a physicist famous for his work in quantum mechanics and Bose-Einstein statistics, not plant biology.

Option 2 -> E. C. George Sudarshan was a theoretical physicist who contributed to particle physics and quantum optics, not botanical instruments.

Option 3 -> Jagdish Chandra Bose was a polymath who pioneered plant physiology research and invented the crescograph to measure minute plant movements and growth.

Option 4 -> G. N. Ramachandran was known for his work in crystallography and structural biology (Ramachandran plot), not plant growth measurement.

Hence, Option 3: Jagdish Chandra Bose -> He invented the crescograph in the early 1900s, which could magnify plant growth by up to 10,000 times, demonstrating that plants have life and respond to stimuli -> correct