The correct answer is (c) J. Robert Oppenheimer.
Oppenheimer was an American theoretical physicist who was the head of the Los Alamos Laboratory during the Manhattan Project, the World War II effort to develop a functional atomic weapon. He is best known for his role in the development of the atomic bomb, but he also played a significant role in the development of the hydrogen bomb.
Oppenheimer was born in New York City in 1904. He studied physics at Harvard University and the University of Cambridge. In 1927, he received his Ph.D. from Harvard. After completing his doctorate, Oppenheimer worked as a research physicist at the California Institute of Technology.
In 1942, Oppenheimer was recruited by the U.S. government to lead the Manhattan Project. The Manhattan Project was a top-secret effort to develop a functional atomic weapon. Oppenheimer and his team of scientists worked at the Los Alamos Laboratory in New Mexico.
In 1945, the Manhattan Project was successful in developing the atomic bomb. The first atomic bomb was tested in the desert of New Mexico on July 16, 1945. Three days later, two atomic bombs were dropped on the Japanese cities of Hiroshima and Nagasaki. The bombings of Hiroshima and Nagasaki killed an estimated 200,000 people and led to the surrender of Japan.
After the war, Oppenheimer became a vocal critic of nuclear weapons. He argued that nuclear weapons were too dangerous to be used and that the United States should work to eliminate them. In 1954, Oppenheimer was stripped of his security clearance by the U.S. government. He died in 1967.
The other options are incorrect.
(a) Adberd Taylor was a British physicist who worked on the Manhattan Project. However, he did not play a significant role in the development of the hydrogen bomb.
(b) Bcrnor Bon Bron was a German physicist who worked on the Manhattan Project. However, he did not play a significant role in the development of the hydrogen bomb.
(d) Samual Cohen was an American physicist who developed the neutron bomb. However, he did not play a significant role in the development of the hydrogen bomb.