The correct option is B India established itself as an emerging nuclear power.
By 1974, the world had 5 nuclear powers including the United States, Russia, Britain, France, and China. India wanted to use this atomic energy for peaceful purposes and was conducting research towards it. On the morning of May 18, 1974, in the Pokharan desert, the ground shook violently as India conducted its first atomic bomb test, cloaking it as a peaceful nuclear explosion. In doing so, India became the world's sixth nation to have exploded a nuclear device.