The correct answer is C. 1967.
The first human heart transplant was conducted on December 3, 1967, by Dr. Christiaan Barnard at Groote Schuur Hospital in Cape Town, South Africa. The patient, Louis Washkansky, was a 55-year-old man with terminal heart disease. The donor was Denise Darvall, a 25-year-old woman who had been killed in a car accident. The transplant was successful, and Washkansky lived for 18 days before dying of pneumonia.
The first human heart transplant was a major medical breakthrough, and it paved the way for future heart transplants. However, it was also a controversial procedure, and it raised ethical concerns about the use of human organs.
The following are the options for the question:
- A. 1958: This is incorrect because the first human heart transplant was conducted in 1967.
- B. 1922: This is incorrect because the first human heart transplant was conducted in 1967.
- C. 1967: This is the correct answer because the first human heart transplant was conducted on December 3, 1967.
- D. 1968: This is incorrect because the first human heart transplant was conducted in 1967.