An award for excellence in the field of medicine:

Nobel Prize in Physiology or Medicine
Dr. B.C. Roy Award
Padma Bhushan
Lasker Award

The correct answer is: A) Nobel Prize in Physiology or Medicine

The Nobel Prize in Physiology or Medicine is one of the five Nobel Prizes established by the will of Alfred Nobel in 1895, awarded for outstanding contributions in chemistry, physics, literature, peace, and physiology or medicine. The Nobel Prize in Physiology or Medicine is awarded by the Royal Swedish Academy of Sciences to scientists who have made outstanding contributions to the field of physiology or medicine.

The Dr. B.C. Roy Award is an Indian award given by the Government of India to recognize outstanding contributions in the field of medicine. The award is named after Dr. Bidhan Chandra Roy, the first Chief Minister of West Bengal.

The Padma Bhushan is the third-highest civilian award in the Republic of India, awarded for distinguished service of a high order to the nation. It is awarded by the President of India.

The Lasker Award is an American medical award given annually by the Lasker Foundation to recognize outstanding contributions to medical research. The award is considered one of the most prestigious awards in the field of medicine.