Correct option is A
R. Srinivasan, an Indian-American scientist, was awarded the National Medal of Technology and Innovation by President Barack Obama on February 1, 2013. Srinivasan was recognized for his pioneering work in laser technology, specifically his development of the Excimer Laser Surgery (known as LASIK), which is widely used in corrective eye surgeries. His innovations significantly improved medical and technological advancements globally.