Waksman got the Nobel Prize for the discovery of
The correct option is
B
Streptomycin
Selman A. Waksman got the Nobel Prize in Physiology or Medicine in 1952 for the discovery of streptomycin. It was the first antibiotic that was effective against tuberculosis. He was studying the effect of soil microorganisms in soil on tubercle bacteria. He found that the growth of tubercle bacteria was impeded by another bacterium,Streptomyces grisues
.