Dr. Linus Carl Pauling is the only person to have won two Nobel prizes individually for

The correct answer is: C. Chemistry in 1954, Peace Prize in 1962

Linus Carl Pauling was an American chemist, biochemist, peace activist, and Nobel laureate. He was the only person to win two Nobel Prizes in two different scientific fields. He won the Nobel Prize in Chemistry in 1954 for his work on the structure of proteins and nucleic acids. He won the Nobel Peace Prize in 1962 for his work on peace and disarmament.

Option A is incorrect because Pauling did not win the Nobel Prize in Medicine.

Option B is incorrect because Pauling did not win the Nobel Prize in Physics.

Option D is incorrect because Pauling did not win the Nobel Prize in Medicine in 1954.