Option 1 -> This refers to Sir C.V. Raman who explained the scattering of light, making the horizon appear blue.
Option 2 -> This refers to Mahatma Gandhi who fought for India's independence, not Marie Curie.
Option 3 -> The passage clearly states Marie Curie discovered radium and radiation, which has applications in treating cancer patients, improving crop yields, and powering industry.
Option 4 -> This refers to the Wright Brothers who proved man could fly, not Marie Curie.
Hence, Option 3 -> Marie Curie won two Nobel Prizes (1903 for discovering radium and 1911 for chemistry research) and is specifically credited as the discoverer of radiation with multiple life-saving and industrial applications mentioned in the passage -> correct