Option D, Nobel Prize for Medicine is the right answer.
Bernardo Alberto Houssay was a Physiologist from Argentine. He was the co-recipient of a Nobel award for Physiology or Medicine. He won this award for his design on the function performed by pituitary hormones in directing the value of glucose in animals. In the field of Science, he was the first Latin American to win this prize.
The United States Congress is specifically forbidden from some actions because the Congress might be wrongly influenced to make certain changes that can effect the general people of the country. The constitution might get affected and the country might lose the virtues on which the founding fathers created the constitution.